815 Area Code
Area code 815 is in Illinois covering Rockford , along with Thawville, Fox Lake and 272 towns and cities.
815 Area Code Phone Lookup
203/475
Cities covering area code 815
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Thawville
Fox Lake
Island Lake
Pistakee Highlands
Volo
Chenoa
Sheffield
Wenona
Bolingbrook
Joliet
Maple Park
Millbrook
Plainfield
Romeoville
Sandwich
Homer Glen
Mokena
Tinley Park
Adeline
Amboy
Apple Canyon Lake
Apple River
Arlington
Aroma Park
Ashkum
Ashton
Beaverville
Belvidere
Bonfield
Bourbonnais
Braceville
Bradley
Braidwood
Buckingham
Bull Valley
Bureau Junction
Byron
Cabery
Caledonia
Campus
Capron
Carbon Hill
Cedar Point
Cedarville
Chadwick
Channahon
Chatsworth
Chebanse
Chemung
Cherry
Cherry Valley
Cissna Park
Clifton
Coal City
Coleta
Como
Compton
Cornell
Cortland
Crescent City
Crest Hill
Creston
Crystal Lake
Crystal Lawns
Cullom
Dakota
Dalzell
Dana
Danforth
Davis
Davis Junction
Dayton
De Pue
Deer Grove
Dekalb
Diamond
Dixon
Donovan
Dover
Durand
Dwight
Earlville
East Brooklyn
East Dubuque
Elizabeth
Elwood
Emington
Essex
Fairbury
Fairmont
Flanagan
Forrest
Forreston
Frankfort
Frankfort Square
Franklin Grove
Freeport
Fulton
Galena
Garden Prairie
Gardner
Genoa
German Valley
Gilman
Godley
Grand Detour
Grand Ridge
Grant Park
Granville
Greenwood
Hanover
Harmon
Harvard
Hebron
Hennepin
Herscher
Hillcrest
Hinckley
Holiday Hills
Hollowayville
Hooppole
Hopkins Park
Ingalls Park
Iroquois
Irwin
Johnsburg
Kangley
Kankakee
Kempton
Kingston
Kinsman
Kirkland
La Moille
Ladd
Lake Holiday
Lake Summerset
Lakemoor
Lakewood
Lakewood Shores
Lanark
Lasalle
Leaf River
Lee
Leland
Lena
Leonore
Limestone
Lisbon
Lockport
Long Point
Lost Nation
Lostant
Loves Park
Lyndon
Machesney Park
Magnolia
Malden
Malta
Manhattan
Manlius
Manteno
Marengo
Mark
Marseilles
Martinton
Mazon
Mccullom Lake
Mchenry
Mcnabb
Mendota
Menominee
Milford
Milledgeville
Millington
Minooka
Momence
Monroe Center
Morris
Morrison
Mount Carroll
Mount Morris
Naplate
Nelson
New Bedford
New Lenox
New Milford
Newark
Nora
North Utica
Odell
Oglesby
Ohio
Onarga
Orangeville
Oregon
Ottawa
Papineau
Paw Paw
Pearl City
Pecatonica
Peru
Piper City
Plattville
Polo
Pontiac
Poplar Grove
Prairie Grove
Preston Heights
Princeton
Prophetstown
Ransom
Reddick
Richmond
Ridott
Ringwood
Rochelle
Rock City
Rock Falls
Rockdale
Rockford
Rockton
Roscoe
Rutland
Sammons Point
Saunemin
Savanna
Scales Mound
Seatonville
Seneca
Shabbona
Shannon
Sheldon
Sheridan
Shorewood
Somonauk
South Beloit
South Wilmington
Spring Grove
Spring Valley
St. Anne
Standard
Sterling
Steward
Stillman Valley
Stockton
Strawn
Streator
Sublette
Sun River Terrace
Sycamore
Symerton
Tampico
The Galena Territory
Thomson
Timberlane
Tiskilwa
Toluca
Tonica
Troy Grove
Union
Union Hill
Verona
Walnut
Warren
Waterman
Watseka
Wellington
West Brooklyn
Wilmington
Winnebago
Winslow
Wonder Lake
Woodland
Woodstock
Wyanet
Zip Codes that Use 815 Area Code
61301
61101
60435
60012
60513
60098
60433
61252
61102
61081
60901
60451
60914
60115
60014
60446
61111
61014
61108
61107
61350
60544
61105
61032
61010
60050
60407
61019
60015
61053
60041
60518
61039
61325
61021
60927
60431
60919
61364
60950
60639
61115
60556
60938
60955
60930
61046
61074
60481
60423
60432
61036
60420
61310
60447
61011
60654
61356
60424
61078
61373
60442
60928
60450
61008
61741
61348
60013
61063
61326
61330
61006
60180
61313
61367
61007
60961
60917
61089
61334
61048
60970
61103
61042
61109
60113
61073
60408
60437
61020
61104
61068
60436
61360
61764
60129
60913
60964
60421
60951
60931
60912
61560
61243
61064
61369
61044
61338
61316
61322
60444
61018
60954
61760
61314
60918
60441
60401
60410
60940
60953
60434
60051
61001
61341
61318
60531
60150
61342
61065
60416
60145
61080
61071
61277
61443
60033
61013
61270
60152
61012
60548
60081
61041
61061
61038
61028
61031
61740
61319
61743
61072
61234
61024
60921
61312
61015
61421
60929
60072
61315
61320
60071
61739
60911
60537
60922
61769
61261
60586
61054
61047
60440
61025
60112
61251
60135
60541
60552
61051
60944
61062
61087
61060
61311
60530
60111
61030
61085
61332
61321
61336
61016
61349
61088
60151
60178
60142
61327
60910
61726
60915
61283
60942
60460
Phone Number Prefixes inArea code 815
| Prefix | County | City | Carrier | Type |
|---|---|---|---|---|
| (815) 200 | La Salle | La Salle | Paetec Communications, Inc. - Il | N/A |
| (815) 201 | Winnebago | Rockford | Usa Mobility Wireless, Inc. | Wireless |
| (815) 202 | Winnebago | Rockford | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 203 | Will | Joliet | Usa Mobility Wireless, Inc. | Wireless |
| (815) 204 | Mchenry | Crystal Lake | Usa Mobility Wireless, Inc. | Wireless |
| (815) 205 | Cook | Brookfield | Usa Mobility Wireless, Inc. | Wireless |
| (815) 206 | Mchenry | Woodstock | Ameritech Illinois | Landline |
| (815) 207 | Will | Joliet | At&t Local | Landline |
| (815) 208 | Whiteside | Fulton | Sprint Communications Company, L.p. - Il | Landline |
| (815) 209 | Winnebago | Rockford | Level 3 Communications, Llc - Il | Landline |
| (815) 210 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 212 | Will | Joliet | T-mobile Usa, Inc. | Landline |
| (815) 213 | Whiteside | Sterling | United States Cellular Corp. - Illinois | Wireless |
| (815) 214 | Kankakee | Kankakee | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 215 | Will | New Lenox | Globalcom, Inc.-il | Landline |
| (815) 216 | Kankakee | Bourbonnais | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 217 | Dekalb | Dekalb | Digital Network Access Communications, Inc. - Il | Landline |
| (815) 218 | Winnebago | Rockford | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 219 | Mchenry | Crystal Lake | United States Cellular Corp. - Illinois | N/A |
| (815) 220 | La Salle | La Salle | Ameritech Illinois | Landline |
| (815) 221 | Will | Romeoville | Teleport Communications Group - Chicago | Landline |
| (815) 222 | Winnebago | Loves Park | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 223 | La Salle | La Salle | Ameritech Illinois | Landline |
| (815) 224 | La Salle | La Salle | Ameritech Illinois | Landline |
| (815) 225 | Carroll | Chadwick | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 226 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 227 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 228 | La Salle | Ottawa | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 229 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 230 | Will | Plainfield | Broadwing Communications, Llc - Il | Landline |
| (815) 231 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 232 | Stephenson | Freeport | Verizon North Inc.-il (contel) | Landline |
| (815) 233 | Stephenson | Freeport | Verizon North Inc.-il (contel) | Landline |
| (815) 234 | Ogle | Byron | Verizon North Inc.-il | Landline |
| (815) 235 | Stephenson | Freeport | Verizon North Inc.-il (contel) | Landline |
| (815) 236 | Mchenry | Mchenry | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 237 | Grundy | Braceville | Ameritech Illinois | Landline |
| (815) 238 | Stephenson | Davis | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 239 | Stephenson | Davis | Verizon North Inc.-il (contel) | Landline |
| (815) 240 | Will | Joliet | Adbeep, Llc | Wireless |
| (815) 241 | Lake | Deerfield | American Messaging (am), Inc. | Wireless |
| (815) 242 | Winnebago | Rockford | Usa Mobility Wireless, Inc. | Wireless |
| (815) 243 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 244 | Carroll | Mount Carroll | Gallatin River Communications | Landline |
| (815) 245 | Lake | Ingleside | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 246 | La Salle | Earlville | Verizon North Inc.-il | Landline |
| (815) 247 | Stephenson | German Valley | Verizon North Inc.-il (contel) | Landline |
| (815) 248 | Stephenson | Davis | Verizon North Inc.-il (contel) | Landline |
| (815) 249 | La Salle | Grand Ridge | Verizon North Inc.-il | Landline |
| (815) 250 | La Salle | La Salle | Comcast Phone Of Illinois, Llc - Il | N/A |
| (815) 251 | Lee | Dixon | Gallatin River Communications | Landline |
| (815) 252 | La Salle | La Salle | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 253 | Iroquois | Clifton | Frontier Communications Of Illinois, Inc. | Landline |
| (815) 254 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 255 | Mchenry | Woodstock | Adbeep, Llc | Wireless |
| (815) 256 | Ford | Cabery | Stelle Telephone Co. | Landline |
| (815) 257 | La Salle | Streator | Illinois Valley Cellular Rsa 2-ii Partnership | Wireless |
| (815) 258 | Kankakee | Manteno | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 259 | Carroll | Mount Carroll | Gallatin River Communications | Landline |
| (815) 260 | Cook | Chicago | United States Cellular Corp. - Illinois | Wireless |
| (815) 261 | Mchenry | Crystal Lake | Mci Worldcom Communications, Inc. - Il | Landline |
| (815) 262 | Winnebago | Machesney Park | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 263 | Kankakee | Bourbonnais | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 264 | Dekalb | Waterman | Verizon North Inc.-il (contel) | Landline |
| (815) 265 | Iroquois | Gilman | Ameritech Illinois | Landline |
| (815) 266 | Stephenson | Freeport | Verizon North Inc.-il (contel) | Landline |
| (815) 267 | Will | Plainfield | Mci Worldcom Communications, Inc. - Il | Landline |
| (815) 268 | Iroquois | Onarga | Ameritech Illinois | Landline |
| (815) 269 | Iroquois | Danforth | Verizon South Inc.-il (alltel) | Landline |
| (815) 270 | Carroll | Lanark | Charter Fiberlink - Illinois, Llc - Il | N/A |
| (815) 271 | Mchenry | Mchenry | Mci Worldcom Communications, Inc. - Il | Landline |
| (815) 272 | Will | Joliet | Mci Worldcom Communications, Inc. - Il | Landline |
| (815) 273 | Carroll | Savanna | Gallatin River Communications | Landline |
| (815) 274 | Will | Wilmington | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 275 | Stephenson | Freeport | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 276 | Mchenry | Crystal Lake | Teleport Communications Group - Chicago | Landline |
| (815) 277 | Will | Frankfort | Teleport Communications Group - Chicago | Landline |
| (815) 278 | Kankakee | Bourbonnais | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 279 | Kankakee | Kankakee | American Messaging (am), Inc. | Wireless |
| (815) 280 | Will | Joliet | Teleport Communications Group - Chicago | Landline |
| (815) 281 | Jo Daviess | Galena | United States Cellular Corp. - Illinois | Wireless |
| (815) 282 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 283 | Will | Joliet | A Beep Llc | Wireless |
| (815) 284 | Lee | Dixon | Gallatin River Communications | Landline |
| (815) 285 | Lee | Dixon | Gallatin River Communications | Landline |
| (815) 286 | Dekalb | Dekalb | Verizon North Inc.-il (contel) | Landline |
| (815) 287 | Livingston | Dwight | Ameritech Illinois | Landline |
| (815) 288 | Lee | Amboy | Gallatin River Communications | Landline |
| (815) 289 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 290 | Grundy | Minooka | Sbc Internet Services, Inc. | N/A |
| (815) 291 | Stephenson | Freeport | United States Cellular Corp. - Illinois | Wireless |
| (815) 292 | Boone | Caledonia | Bergen Telephone Co. - Illinois | Landline |
| (815) 293 | Will | Plainfield | Ameritech Illinois | Landline |
| (815) 294 | Cook | Brookfield | Usa Mobility Wireless, Inc. | Wireless |
| (815) 295 | Kankakee | Kankakee | T-mobile Usa, Inc. | Landline |
| (815) 296 | Winnebago | Rockford | Usa Mobility Wireless, Inc. | Wireless |
| (815) 297 | Stephenson | Freeport | Verizon North Inc.-il (contel) | Landline |
| (815) 298 | Winnebago | Rockford | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 299 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 300 | Cook | Chicago | Ameritech Illinois | Landline |
| (815) 301 | Mchenry | Crystal Lake | Broadwing Communications, Llc - Il | Landline |
| (815) 302 | Will | Joliet | Sprint Spectrum L.p. | Wireless |
| (815) 303 | Bureau | Princeton | Illinois Valley Cellular Rsa 2-i Partnership | Wireless |
| (815) 304 | Kankakee | Kankakee | Broadwing Communications, Llc - Il | Landline |
| (815) 305 | Grundy | Gardner | Broadwing Communications, Llc - Il | Landline |
| (815) 306 | Will | Romeoville | Broadwing Communications, Llc - Il | Landline |
| (815) 307 | Mchenry | Woodstock | Broadwing Communications, Llc - Il | Landline |
| (815) 308 | Mchenry | Woodstock | Broadwing Communications, Llc - Il | Landline |
| (815) 309 | Carroll | Shannon | Aero Communications, Inc. - Il | N/A |
| (815) 310 | La Salle | Utica | Broadwing Communications, Llc - Il | Landline |
| (815) 312 | Livingston | Dwight | Ymax Communications Corp. - Il | N/A |
| (815) 313 | La Salle | Ottawa | Broadwing Communications, Llc - Il | Landline |
| (815) 314 | Will | Manhattan | Broadwing Communications, Llc - Il | Landline |
| (815) 315 | Winnebago | Rockford | Level 3 Communications, Llc - Il | Landline |
| (815) 316 | Winnebago | Loves Park | Tds Metrocom Inc.-il | Landline |
| (815) 317 | Iroquois | Crescent City | Broadwing Communications, Llc - Il | Landline |
| (815) 318 | Grundy | Morris | Broadwing Communications, Llc - Il | Landline |
| (815) 319 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 320 | Kankakee | Bourbonnais | Wireless | |
| (815) 321 | Mchenry | Woodstock | Xo Illinois, Inc. | Landline |
| (815) 322 | Mchenry | Mchenry | Level 3 Communications, Llc - Il | Landline |
| (815) 323 | Boone | Belvidere | Level 3 Communications, Llc - Il | Landline |
| (815) 324 | Will | Joliet | Wireless | |
| (815) 325 | Livingston | Forrest | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 326 | La Salle | Oglesby | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 327 | Will | Plainfield | Broadwing Communications, Llc - Il | Landline |
| (815) 328 | Will | Romeoville | Broadwing Communications, Llc - Il | Landline |
| (815) 329 | La Salle | Oglesby | Usa Mobility Wireless, Inc. | Wireless |
| (815) 330 | Iroquois | Crescent City | Globalcom, Inc.-il | Landline |
| (815) 331 | Mchenry | Mchenry | Broadwing Communications, Llc - Il | Landline |
| (815) 332 | Boone | Belvidere | Verizon North Inc.-il | Landline |
| (815) 333 | Mchenry | Cary | Broadwing Communications, Llc - Il | Landline |
| (815) 334 | Mchenry | Woodstock | Ameritech Illinois | Landline |
| (815) 335 | Winnebago | Pecatonica | Verizon North Inc.-il | Landline |
| (815) 336 | Carroll | Chadwick | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 337 | Mchenry | Woodstock | Ameritech Illinois | Landline |
| (815) 338 | Mchenry | Woodstock | Ameritech Illinois | Landline |
| (815) 339 | Putnam | Granville | Verizon North Inc.-il (contel) | Landline |
| (815) 340 | Bureau | La Moille | Comcast Phone Of Illinois, Llc - Il | N/A |
| (815) 341 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 342 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 343 | La Salle | Ottawa | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 344 | Mchenry | Mchenry | Ameritech Illinois | Landline |
| (815) 345 | Winnebago | Rockford | Level 3 Communications, Llc - Il | Landline |
| (815) 346 | Grundy | Gardner | Broadwing Communications, Llc - Il | Landline |
| (815) 347 | Mchenry | Woodstock | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 348 | Will | Joliet | Wireless | |
| (815) 349 | Mchenry | Mchenry | Xo Illinois, Inc. | Landline |
| (815) 350 | Lee | Ashton | Essex Telcom, Inc. | Landline |
| (815) 351 | Kankakee | Kankakee | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 352 | Kankakee | Kankakee | Broadwing Communications, Llc - Il | Landline |
| (815) 353 | Mchenry | Union | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 354 | Will | Frankfort | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 355 | Mchenry | Union | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 356 | Mchenry | Crystal Lake | Ameritech Illinois | Landline |
| (815) 357 | Grundy | Morris | Ameritech Illinois | Landline |
| (815) 358 | Livingston | Blackstone | C-r Telephone Co. | Landline |
| (815) 359 | Lee | Amboy | Gallatin River Communications | Landline |
| (815) 360 | Lee | Sublette | Essex Telcom, Inc. | Landline |
| (815) 361 | Will | Manhattan | Broadwing Communications, Llc - Il | Landline |
| (815) 362 | Ogle | Baileyville | Verizon North Inc.-il (contel) | Landline |
| (815) 363 | Mchenry | Mchenry | Ameritech Illinois | Landline |
| (815) 364 | Kankakee | Reddick | Broadwing Communications, Llc - Il | Landline |
| (815) 365 | Kankakee | Buckingham | Verizon North Inc.-il | Landline |
| (815) 366 | La Salle | Ottawa | Broadwing Communications, Llc - Il | Landline |
| (815) 367 | Stephenson | Winslow | Verizon North Inc.-il (contel) | Landline |
| (815) 368 | La Salle | Lostant | Verizon North Inc.-il | Landline |
| (815) 369 | Stephenson | Lena | Verizon North Inc.-il (contel) | Landline |
| (815) 370 | Kankakee | Bourbonnais | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 371 | La Salle | Utica | Broadwing Communications, Llc - Il | Landline |
| (815) 372 | Will | Plainfield | Ameritech Illinois | Landline |
| (815) 373 | Will | Joliet | Adbeep, Llc | Wireless |
| (815) 374 | Will | Joliet | Adbeep, Llc | Wireless |
| (815) 375 | Will | Romeoville | United States Cellular Corp. - Illinois | Wireless |
| (815) 376 | Lee | Amboy | Verizon North Inc.-il | Landline |
| (815) 377 | Iroquois | Watseka | Broadwing Communications, Llc - Il | Landline |
| (815) 378 | Winnebago | Rockford | Nextel Communications, Inc. | Wireless |
| (815) 379 | Lee | Harmon | Verizon North Inc.-il | Landline |
| (815) 380 | Whiteside | Sterling | Essex Telcom, Inc. | Landline |
| (815) 381 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 382 | Mchenry | Crystal Lake | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 383 | Iroquois | Gilman | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 384 | Ogle | Creston | Verizon North Inc.-il (contel) | Landline |
| (815) 385 | Mchenry | Mchenry | Ameritech Illinois | Landline |
| (815) 386 | Kankakee | Bourbonnais | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 387 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 388 | Mchenry | Mchenry | Nextel Communications, Inc. | Landline |
| (815) 389 | Winnebago | Roscoe | Ameritech Illinois | Landline |
| (815) 390 | Will | Braidwood | Comcast Phone Of Illinois, Llc - Il | Landline |
| (815) 391 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 392 | Grundy | Kinsman | Kinsman Mutual Telephone Co. | Landline |
| (815) 393 | Ogle | Davis Junction | Verizon North Inc.-il (contel) | Landline |
| (815) 394 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 395 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 396 | Ogle | Rochelle | Verizon North Inc.-il (contel) | Landline |
| (815) 397 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 398 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 399 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 400 | Winnebago | Rockford | Landline | |
| (815) 401 | Kankakee | Kankakee | Level 3 Communications, Llc - Il | Landline |
| (815) 402 | Jo Daviess | Galena | Sprint Communications Company, L.p. - Il | Landline |
| (815) 403 | Mchenry | Mchenry | Sprint Spectrum L.p. | Wireless |
| (815) 404 | Mchenry | Crystal Lake | Sprint Spectrum L.p. | Wireless |
| (815) 405 | Will | Plainfield | Nextel Communications, Inc. | Wireless |
| (815) 406 | Boone | Belvidere | Verizon North Inc.-il | Landline |
| (815) 407 | Will | Plainfield | Ameritech Illinois | Landline |
| (815) 408 | La Salle | Utica | Globalcom, Inc.-il | Landline |
| (815) 409 | Will | Joliet | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 410 | La Salle | La Salle | Level 3 Communications, Llc - Il | Landline |
| (815) 412 | Will | Frankfort | Broadwing Communications, Llc - Il | Landline |
| (815) 413 | Grundy | Morris | Globalcom, Inc.-il | Landline |
| (815) 414 | La Salle | Earlville | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 415 | La Salle | Seneca | Ameritech Illinois | Landline |
| (815) 416 | Grundy | Morris | Ameritech Illinois | Landline |
| (815) 417 | Will | Braidwood | Ameritech Illinois | Landline |
| (815) 418 | Will | Manhattan | Globalcom, Inc.-il | Landline |
| (815) 419 | Livingston | Pontiac | At&t Local | Landline |
| (815) 420 | Dekalb | Esmond | Essex Telcom, Inc. | Landline |
| (815) 421 | Kankakee | Bonfield | Ameritech Illinois | Landline |
| (815) 422 | Kankakee | Saint Anne | Ameritech Illinois | Landline |
| (815) 423 | Will | Elwood | Ameritech Illinois | Landline |
| (815) 424 | Will | Elwood | Ameritech Illinois | Landline |
| (815) 425 | Mchenry | Crystal Lake | Broadwing Communications, Llc - Il | Landline |
| (815) 426 | Kankakee | Bonfield | Ameritech Illinois | Landline |
| (815) 427 | Kankakee | Saint Anne | Ameritech Illinois | Landline |
| (815) 428 | Iroquois | Martinton | Verizon North Inc.-il | Landline |
| (815) 429 | Iroquois | Donovan | Verizon North Inc.-il | Landline |
| (815) 430 | Mchenry | Mchenry | Globalcom, Inc.-il | Landline |
| (815) 431 | La Salle | Ottawa | Ameritech Illinois | Landline |
| (815) 432 | Iroquois | Watseka | Ameritech Illinois | Landline |
| (815) 433 | La Salle | Ottawa | Ameritech Illinois | Landline |
| (815) 434 | La Salle | Ottawa | Ameritech Illinois | Landline |
| (815) 435 | Iroquois | Beaverville | Verizon North Inc.-il | Landline |
| (815) 436 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 437 | Putnam | Putnam | Verizon North Inc.-il (contel) | Landline |
| (815) 438 | Whiteside | Deer Grove | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 439 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 440 | Lee | Dixon | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 441 | Ogle | Polo | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 442 | Marshall | Toluca | Tonica Telephone Co. | Landline |
| (815) 443 | Stephenson | Kent | Verizon North Inc.-il (contel) | Landline |
| (815) 444 | Mchenry | Crystal Lake | Ameritech Illinois | Landline |
| (815) 445 | Bureau | Manlius | Verizon North Inc.-il | Landline |
| (815) 446 | La Salle | Cedar Point | Verizon North Inc.-il (contel) | Landline |
| (815) 447 | Bureau | Depue | Frontier Communications Of Depue, Inc. | Landline |
| (815) 448 | Grundy | Mazon | Ameritech Illinois | Landline |
| (815) 449 | Stephenson | Dakota | Verizon North Inc.-il (contel) | Landline |
| (815) 450 | Kankakee | Momence | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 451 | Mchenry | Mchenry | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 452 | Woodford | Minonk | Verizon North Inc.-il | Landline |
| (815) 453 | Lee | Ashton | Verizon North Inc.-il (contel) | Landline |
| (815) 454 | Bureau | Buda | Verizon North Inc.-il | Landline |
| (815) 455 | Mchenry | Crystal Lake | Ameritech Illinois | Landline |
| (815) 456 | Lee | Ashton | Verizon North Inc.-il (contel) | Landline |
| (815) 457 | Iroquois | Buckley | Verizon South Inc.-il (alltel) | Landline |
| (815) 458 | Grundy | Braceville | Ameritech Illinois | Landline |
| (815) 459 | Mchenry | Crystal Lake | Ameritech Illinois | Landline |
| (815) 460 | Will | Joliet | Globalcom, Inc.-il | Landline |
| (815) 461 | Will | Romeoville | Broadwing Communications, Llc - Il | Landline |
| (815) 462 | Will | Lockport | Ameritech Illinois | Landline |
| (815) 463 | Will | Lockport | Ameritech Illinois | Landline |
| (815) 464 | Will | Frankfort | Ameritech Illinois | Landline |
| (815) 465 | Will | Beecher | Ameritech Illinois | Landline |
| (815) 466 | Will | Beecher | Ameritech Illinois | Landline |
| (815) 467 | Will | Channahon | Ameritech Illinois | Landline |
| (815) 468 | Kankakee | Manteno | Ameritech Illinois | Landline |
| (815) 469 | Will | Frankfort | Ameritech Illinois | Landline |
| (815) 470 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 471 | Iroquois | Watseka | Illinois Valley Cellular Rsa 2-iii Partnership | Wireless |
| (815) 472 | Kankakee | Grant Park | Ameritech Illinois | Landline |
| (815) 473 | Iroquois | Milford | Verizon South Inc.-il (alltel) | Landline |
| (815) 474 | Grundy | Morris | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 475 | Grundy | Minooka | Ameritech Illinois | Landline |
| (815) 476 | Will | Wilmington | Ameritech Illinois | Landline |
| (815) 477 | Mchenry | Crystal Lake | Ameritech Illinois | Landline |
| (815) 478 | Will | Elwood | Ameritech Illinois | Landline |
| (815) 479 | Mchenry | Crystal Lake | Ameritech Illinois | Landline |
| (815) 480 | Winnebago | Rockford | Usa Mobility Wireless, Inc. | Wireless |
| (815) 481 | Cook | Brookfield | Illinois Valley Cellular Rsa 2-i Partnership | Wireless |
| (815) 482 | Will | Manhattan | Nextel Communications, Inc. | Wireless |
| (815) 483 | Will | Joliet | Sprint Spectrum L.p. | Wireless |
| (815) 484 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 485 | Will | Lockport | Ameritech Illinois | Landline |
| (815) 486 | Iroquois | Beaverville | Verizon North Inc.-il | Landline |
| (815) 487 | Will | Plainfield | Globalcom, Inc.-il | Landline |
| (815) 488 | Will | Romeoville | Illinois Valley Cellular Rsa 2-i Partnership | Wireless |
| (815) 489 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 490 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 491 | Mchenry | Mchenry | Usa Mobility Wireless, Inc. | Wireless |
| (815) 492 | Jo Daviess | Apple River | Verizon North Inc.-il (contel) | Landline |
| (815) 493 | Carroll | Lanark | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 494 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 495 | La Salle | Earlville | Verizon North Inc.-il | Landline |
| (815) 496 | La Salle | Marseilles | Verizon North Inc.-il | Landline |
| (815) 497 | Lee | Compton | Verizon North Inc.-il | Landline |
| (815) 498 | La Salle | Leland | Verizon North Inc.-il | Landline |
| (815) 499 | Whiteside | Sterling | United States Cellular Corp. - Illinois | Wireless |
| (815) 500 | La Salle | Marseilles | Sprint Communications Company, L.p. - Il | N/A |
| (815) 501 | Dekalb | Malta | Sprint Spectrum L.p. | Wireless |
| (815) 502 | Mchenry | Woodstock | Globalcom, Inc.-il | Landline |
| (815) 503 | La Salle | Mendota | Sprint Spectrum L.p.- Il | Wireless |
| (815) 504 | Grundy | Gardner | Globalcom, Inc.-il | Landline |
| (815) 505 | Winnebago | Rockford | T-mobile Usa, Inc. | Wireless |
| (815) 506 | Mchenry | Union | Level 3 Communications, Llc - Il | Landline |
| (815) 507 | Kankakee | Momence | Level 3 Communications, Llc - Il | Landline |
| (815) 508 | Dekalb | Dekalb | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 509 | Boone | Poplar Grove | Nextel Communications, Inc. | Wireless |
| (815) 510 | Will | Joliet | Illinois Valley Cellular Rsa 2-ii Partnership | Wireless |
| (815) 512 | Will | Romeoville | Globalcom, Inc.-il | Landline |
| (815) 513 | Grundy | Morris | Level 3 Communications, Llc - Il | Landline |
| (815) 514 | Will | Joliet | Nextel Communications, Inc. | Wireless |
| (815) 515 | Iroquois | Watseka | Level 3 Communications, Llc - Il | Landline |
| (815) 516 | Winnebago | Rockford | Nextel Communications, Inc. | Landline |
| (815) 517 | Dekalb | Dekalb | Mci Worldcom Communications, Inc. - Il | Landline |
| (815) 518 | Grundy | Coal City | Globalcom, Inc.-il | Landline |
| (815) 519 | Winnebago | Rockford | Sprint Spectrum L.p. | Wireless |
| (815) 520 | Winnebago | Rockford | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 521 | Will | Channahon | Ameritech Illinois | Landline |
| (815) 522 | Dekalb | Kingston | Verizon North Inc.-il (contel) | Landline |
| (815) 523 | Kankakee | Kankakee | Teleport Communications Group - Chicago | Landline |
| (815) 524 | Will | Romeoville | Teleport Communications Group - Chicago | Landline |
| (815) 525 | Winnebago | South Beloit | Tds Metrocom Inc.-il | Landline |
| (815) 526 | Mchenry | Crystal Lake | Teleport Communications Group - Chicago | Landline |
| (815) 527 | Mchenry | Woodstock | Teleport Communications Group - Chicago | Landline |
| (815) 528 | Mchenry | Mchenry | Teleport Communications Group - Chicago | Landline |
| (815) 529 | Will | Joliet | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 530 | Will | Joliet | Nextel Communications, Inc. | Landline |
| (815) 531 | Will | Joliet | Teleport Communications Group - Chicago | Landline |
| (815) 532 | Grundy | Coal City | Usa Mobility Wireless, Inc. | Wireless |
| (815) 533 | Cook | Brookfield | Indiana Paging Ntwk | Wireless |
| (815) 534 | Will | Frankfort | Level 3 Communications, Llc - Il | Landline |
| (815) 535 | Whiteside | Rock Falls | Ameritech Illinois | Landline |
| (815) 536 | Cook | Brookfield | Usa Mobility Wireless, Inc. | Wireless |
| (815) 537 | Whiteside | Prophetstown | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 538 | La Salle | Mendota | Verizon North Inc.-il | Landline |
| (815) 539 | La Salle | Mendota | Verizon North Inc.-il | Landline |
| (815) 540 | Winnebago | Rockford | Sprint Spectrum L.p. | Wireless |
| (815) 541 | Stephenson | Freeport | United States Cellular Corp. - Illinois | Wireless |
| (815) 542 | Henry | Kewanee | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 543 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 544 | Boone | Belvidere | Verizon North Inc.-il | Landline |
| (815) 545 | Lee | Ashton | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 546 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 547 | Boone | Belvidere | Verizon North Inc.-il | Landline |
| (815) 548 | Whiteside | Rock Falls | Ameritech Illinois | Landline |
| (815) 549 | Kankakee | Kankakee | Sprint Spectrum L.p.- Il | Wireless |
| (815) 550 | Kankakee | Grant Park | Broadwing Communications, Llc - Il | Landline |
| (815) 551 | Carroll | Savanna | Essex Telcom, Inc. | Landline |
| (815) 552 | Will | Romeoville | Ameritech Illinois | Landline |
| (815) 553 | Will | Joliet | Ovation Communications Of Illinois, Inc. | Landline |
| (815) 554 | Jo Daviess | Galena | Sprint Communications Company, L.p. - Il | Landline |
| (815) 556 | Will | Joliet | Broadwing Communications, Llc - Il | Landline |
| (815) 557 | Will | Joliet | Sprint Spectrum L.p. | Wireless |
| (815) 558 | Will | Joliet | United States Cellular Corp. - Illinois | Wireless |
| (815) 559 | Whiteside | Fulton | Essex Telcom, Inc. | Landline |
| (815) 560 | Mchenry | Harvard | Nextel Communications, Inc. | Landline |
| (815) 561 | Ogle | Rochelle | Verizon North Inc.-il (contel) | Landline |
| (815) 562 | Ogle | Rochelle | Verizon North Inc.-il (contel) | Landline |
| (815) 563 | Stephenson | Cedarville | Verizon North Inc.-il (contel) | Landline |
| (815) 564 | Whiteside | Rock Falls | Ameritech Illinois | Landline |
| (815) 565 | Whiteside | Morrison | Sprint Communications Company, L.p. - Il | Landline |
| (815) 566 | Boone | Belvidere | Level 3 Communications, Llc - Il | Landline |
| (815) 567 | Kankakee | Buckingham | Verizon North Inc.-il | Landline |
| (815) 568 | Mchenry | Marengo | Ameritech Illinois | Landline |
| (815) 569 | Boone | Capron | Verizon North Inc.-il | Landline |
| (815) 570 | Dekalb | Sandwich | Level 3 Communications, Llc - Il | Landline |
| (815) 571 | Carroll | Shannon | Sprint Communications Company, L.p. - Il | N/A |
| (815) 572 | Mchenry | Marengo | Broadwing Communications, Llc - Il | Landline |
| (815) 573 | Kankakee | Kankakee | Level 3 Communications, Llc - Il | Landline |
| (815) 574 | Lee | Harmon | Essex Telcom, Inc. | Landline |
| (815) 575 | Mchenry | Woodstock | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 576 | Ogle | Polo | Essex Telcom, Inc. | Landline |
| (815) 577 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 578 | Mchenry | Mchenry | Ameritech Illinois | Landline |
| (815) 579 | La Salle | Oglesby | Sprint Spectrum L.p.- Il | Wireless |
| (815) 580 | Winnebago | Rockford | At&t Local | Landline |
| (815) 581 | Mchenry | Spring Grove | Comcast Phone Of Illinois, Llc - Il | Landline |
| (815) 582 | Will | Joliet | T-mobile Usa, Inc. | Wireless |
| (815) 583 | Whiteside | Morrison | Essex Telcom, Inc. | Landline |
| (815) 584 | Livingston | Dwight | Ameritech Illinois | Landline |
| (815) 585 | Grundy | Morris | Level 3 Communications, Llc - Il | Landline |
| (815) 586 | Livingston | Blackstone | C-r Telephone Co. | Landline |
| (815) 587 | La Salle | Ottawa | Level 3 Communications, Llc - Il | Landline |
| (815) 588 | Will | Lockport | Ameritech Illinois | Landline |
| (815) 589 | Whiteside | Fulton | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 590 | Whiteside | Sterling | Sprint Spectrum L.p.- Il | Wireless |
| (815) 591 | Jo Daviess | Hanover | Verizon North Inc.-il (contel) | Landline |
| (815) 592 | Kankakee | Bourbonnais | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 593 | Dekalb | Dekalb | At&t Local | Landline |
| (815) 594 | Jo Daviess | Apple River | Verizon North Inc.-il (contel) | Landline |
| (815) 595 | Ogle | Oregon | At&t Local | Landline |
| (815) 596 | Mchenry | Marengo | Sbc Internet Services, Inc. | N/A |
| (815) 597 | Boone | Garden Prairie | Verizon North Inc.-il | Landline |
| (815) 598 | Jo Daviess | Elizabeth | Verizon North Inc.-il (contel) | Landline |
| (815) 599 | Stephenson | Freeport | Verizon North Inc.-il (contel) | Landline |
| (815) 600 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Landline |
| (815) 601 | Winnebago | Rockford | Bitwise Communications, Inc. - Il | Landline |
| (815) 602 | Kankakee | Kankakee | Globalcom, Inc.-il | Landline |
| (815) 603 | Kankakee | Kankakee | T-mobile Usa, Inc. | Wireless |
| (815) 604 | Lee | Franklin Grove | Essex Telcom, Inc. | Landline |
| (815) 605 | Kankakee | Grant Park | Level 3 Communications, Llc - Il | Landline |
| (815) 606 | La Salle | Ottawa | Globalcom, Inc.-il | Landline |
| (815) 607 | Livingston | Flanagan | Bitwise Communications, Inc. - Il | Landline |
| (815) 608 | Winnebago | Rockford | T-mobile Usa, Inc. | Wireless |
| (815) 609 | Will | Plainfield | Ameritech Illinois | Landline |
| (815) 610 | Livingston | Cornell | Bitwise Communications, Inc. - Il | Landline |
| (815) 612 | Livingston | Graymont | Bitwise Communications, Inc. - Il | Landline |
| (815) 613 | Carroll | Mount Carroll | Essex Telcom, Inc. | Landline |
| (815) 614 | Kankakee | Kankakee | Broadwing Communications, Llc - Il | Landline |
| (815) 615 | La Salle | Mendota | Level 3 Communications, Llc - Il | Landline |
| (815) 616 | Stephenson | Freeport | T-mobile Usa, Inc. | Wireless |
| (815) 617 | La Salle | Ottawa | At&t Local | Landline |
| (815) 618 | Stephenson | Freeport | New Cingular Wireless Pcs, Llc - Il | N/A |
| (815) 619 | Winnebago | Rockton | Aero Communications, Inc. - Il | Landline |
| (815) 620 | Henry | Annawan | Essex Telcom, Inc. | Landline |
| (815) 621 | Winnebago | Rockford | Sprint Spectrum L.p. | Wireless |
| (815) 622 | Whiteside | Rock Falls | Ameritech Illinois | Landline |
| (815) 623 | Winnebago | Roscoe | Verizon North Inc.-il | Landline |
| (815) 624 | Winnebago | Rockton | Verizon North Inc.-il | Landline |
| (815) 625 | Whiteside | Rock Falls | Ameritech Illinois | Landline |
| (815) 626 | Whiteside | Rock Falls | Ameritech Illinois | Landline |
| (815) 627 | La Salle | Earlville | Verizon North Inc.-il | Landline |
| (815) 628 | Lee | Compton | Verizon North Inc.-il | Landline |
| (815) 629 | Winnebago | Durand | Verizon North Inc.-il | Landline |
| (815) 630 | Will | Joliet | T-mobile Usa, Inc. | N/A |
| (815) 631 | Lee | Dixon | Ameritech Illinois | Landline |
| (815) 632 | Whiteside | Rock Falls | Ameritech Illinois | Landline |
| (815) 633 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 634 | Grundy | Coal City | Ameritech Illinois | Landline |
| (815) 635 | Livingston | Chatsworth | Verizon North Inc.-il | Landline |
| (815) 636 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 637 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 638 | Bureau | Arlington | Verizon North Inc.-il | Landline |
| (815) 639 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 640 | La Salle | Ottawa | Teleport Communications Group - Chicago | Landline |
| (815) 641 | Winnebago | Rockford | Cellco Partnership Dba Verizon Wireless - Il | N/A |
| (815) 642 | Grundy | Minooka | Broadwing Communications, Llc - Il | Landline |
| (815) 643 | Bureau | Arlington | Verizon North Inc.-il | Landline |
| (815) 644 | Iroquois | Crescent City | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 645 | Ogle | Chana | Verizon North Inc.-il | Landline |
| (815) 646 | Stark | Bradford | Verizon North Inc.-il | Landline |
| (815) 647 | Livingston | Cullom | Sprint Communications Company, L.p. - Il | Landline |
| (815) 648 | Mchenry | Harvard | Verizon North Inc.-il | Landline |
| (815) 649 | Grundy | Gardner | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 650 | Stephenson | Freeport | At&t Local | Landline |
| (815) 651 | Will | Joliet | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 652 | Lee | Dixon | Gallatin River Communications | Landline |
| (815) 653 | Mchenry | Ringwood | Verizon North Inc.-il | Landline |
| (815) 654 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 655 | Whiteside | Sterling | Essex Telcom, Inc. | Landline |
| (815) 656 | Stephenson | Freeport | Level 3 Communications, Llc - Il | Landline |
| (815) 657 | Livingston | Dwight | Ameritech Illinois | Landline |
| (815) 658 | Carroll | Lanark | Essex Telcom, Inc. | Landline |
| (815) 659 | Bureau | Bureau | Verizon North Inc.-il | Landline |
| (815) 660 | Will | Romeoville | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 661 | Grundy | Morris | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 662 | Kankakee | Momence | Level 3 Communications, Llc - Il | Landline |
| (815) 663 | Bureau | Dalzell | Verizon North Inc.-il | Landline |
| (815) 664 | Bureau | Dalzell | Verizon North Inc.-il | Landline |
| (815) 665 | La Salle | Ottawa | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 666 | Will | Joliet | Cellco Partnership Dba Verizon Wireless - Il | N/A |
| (815) 667 | La Salle | La Salle | Ameritech Illinois | Landline |
| (815) 668 | Will | Joliet | Wireless | |
| (815) 669 | Mchenry | Mchenry | Level 3 Communications, Llc - Il | Landline |
| (815) 670 | Winnebago | Rockford | Sprint Spectrum L.p. | Wireless |
| (815) 671 | Will | Joliet | Level 3 Communications, Llc - Il | Landline |
| (815) 672 | Livingston | Cornell | Verizon North Inc.-il | Landline |
| (815) 673 | Livingston | Cornell | Verizon North Inc.-il | Landline |
| (815) 674 | La Salle | Streator | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 675 | Mchenry | Mchenry | Verizon North Inc.-il | Landline |
| (815) 676 | Will | Plainfield | Level 3 Communications, Llc - Il | Landline |
| (815) 677 | Jo Daviess | Elizabeth | Cellco Partnership Dba Verizon Wireless - Il | Landline |
| (815) 678 | Mchenry | Richmond | Verizon North Inc.-il | Landline |
| (815) 679 | Will | Plainfield | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 680 | Will | Manhattan | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 681 | Winnebago | Rockford | Cost Plus Communications, Llc - Il | Wireless |
| (815) 682 | Iroquois | Milford | Verizon South Inc.-il (alltel) | Landline |
| (815) 683 | Iroquois | Crescent City | Ameritech Illinois | Landline |
| (815) 684 | Carroll | Chadwick | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 685 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 686 | Iroquois | Danforth | Verizon North Inc.-il | Landline |
| (815) 687 | Mchenry | Woodstock | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 688 | Livingston | Fairbury | Verizon North Inc.-il | Landline |
| (815) 689 | Iroquois | Ashkum | Frontier Communications Of Illinois, Inc. | Landline |
| (815) 690 | Will | Joliet | United States Cellular Corp. - Illinois | Wireless |
| (815) 691 | La Salle | Utica | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 692 | Livingston | Fairbury | Verizon North Inc.-il | Landline |
| (815) 693 | Will | Joliet | Nextel Communications, Inc. | Wireless |
| (815) 694 | Iroquois | Ashkum | Verizon North Inc.-il | Landline |
| (815) 695 | Kendall | Millington | Ameritech Illinois | Landline |
| (815) 696 | Winnebago | Roscoe | Aero Communications, Inc. - Il | Landline |
| (815) 697 | Iroquois | Chebanse | Verizon North Inc.-il | Landline |
| (815) 698 | Iroquois | Ashkum | Verizon North Inc.-il | Landline |
| (815) 699 | Bureau | Princeton | Verizon North Inc.-il | Landline |
| (815) 701 | Mchenry | Woodstock | Level 3 Communications, Llc - Il | Landline |
| (815) 702 | Livingston | Saunemin | Sprint Communications Company, L.p. - Il | Landline |
| (815) 703 | Winnebago | Rockford | Nextel Communications, Inc. | Wireless |
| (815) 704 | Winnebago | South Beloit | Mcleodusa Telecommunications Services, Inc.- Il | Landline |
| (815) 705 | Grundy | Morris | Teleport Communications Group - Chicago | Landline |
| (815) 706 | Whiteside | Lyndon | Essex Telcom, Inc. | Landline |
| (815) 707 | Iroquois | Gilman | Level 3 Communications, Llc - Il | Landline |
| (815) 708 | Winnebago | Rockford | Comcast Phone Of Illinois, Llc - Il | N/A |
| (815) 709 | Grundy | Coal City | Level 3 Communications, Llc - Il | Landline |
| (815) 710 | Grundy | Morris | At&t Local | Landline |
| (815) 712 | Mchenry | Harvard | Nextel Communications, Inc. | Wireless |
| (815) 713 | Winnebago | Rockford | New Cingular Wireless Pcs, Llc - Il | Landline |
| (815) 714 | Will | Joliet | Sprint Communications Company, L.p. - Il | Landline |
| (815) 715 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 716 | Whiteside | Sterling | Nextel Communications, Inc. | Wireless |
| (815) 717 | Will | New Lenox | Broadwing Communications, Llc - Il | Landline |
| (815) 718 | Whiteside | Sterling | United States Cellular Corp. - Illinois | Wireless |
| (815) 719 | Bureau | Princeton | Nextel Communications, Inc. | Wireless |
| (815) 720 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 721 | Winnebago | Rockford | At&t Local | Landline |
| (815) 722 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 723 | Will | Elwood | Ameritech Illinois | Landline |
| (815) 724 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 725 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 726 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 727 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 728 | Mchenry | Ringwood | Verizon North Inc.-il | Landline |
| (815) 729 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 730 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 731 | Will | Plainfield | Ameritech Illinois | N/A |
| (815) 732 | Ogle | Chana | Verizon North Inc.-il (contel) | Landline |
| (815) 733 | Will | Plainfield | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 734 | Ogle | Mount Morris | Verizon North Inc.-il (contel) | Landline |
| (815) 735 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 736 | Grundy | Morris | Ameritech Illinois | Landline |
| (815) 737 | Boone | Capron | Sharon Telephone Co. - Illinois | Landline |
| (815) 738 | Ogle | Leaf River | Leaf River Telephone Co. | Landline |
| (815) 739 | Will | Bolingbrook | Nextel Communications, Inc. | Wireless |
| (815) 740 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 741 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 742 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 743 | Livingston | Flanagan | Frontier Communications Of Prairie, Inc. | Landline |
| (815) 744 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 745 | Stephenson | Lena | Verizon North Inc.-il (contel) | Landline |
| (815) 746 | Dekalb | Dekalb | Marseilles Telephone Co. Of Marseilles | Wireless |
| (815) 747 | Jo Daviess | East Dubuque | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 748 | Dekalb | Cortland | Verizon North Inc.-il (contel) | Landline |
| (815) 749 | Winnebago | Rockford | Answer America Dba Answer Usa | Wireless |
| (815) 750 | La Salle | Marseilles | Marseilles Telephone Co. Of Marseilles | Landline |
| (815) 751 | Dekalb | Dekalb | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 752 | Dekalb | Dekalb | Verizon North Inc.-il (contel) | Landline |
| (815) 753 | Dekalb | Dekalb | Verizon North Inc.-il (contel) | Landline |
| (815) 754 | Dekalb | Cortland | Verizon North Inc.-il (contel) | Landline |
| (815) 755 | La Salle | Oglesby | American Messaging (am), Inc. | Wireless |
| (815) 756 | Dekalb | Cortland | Verizon North Inc.-il (contel) | Landline |
| (815) 757 | Dekalb | Dekalb | United States Cellular Corp. - Illinois | Wireless |
| (815) 758 | Dekalb | Cortland | Verizon North Inc.-il (contel) | Landline |
| (815) 759 | Mchenry | Mchenry | Ameritech Illinois | Landline |
| (815) 760 | Putnam | Putnam | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 761 | Dekalb | Dekalb | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 762 | Dekalb | Dekalb | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 763 | Will | Joliet | Answer America Dba Answer Usa | Wireless |
| (815) 764 | Dekalb | Dekalb | United States Cellular Corp. - Illinois | Wireless |
| (815) 765 | Boone | Caledonia | Verizon North Inc.-il | Landline |
| (815) 766 | Dekalb | Dekalb | United States Cellular Corp. - Illinois | Wireless |
| (815) 767 | Will | Joliet | American Messaging (am), Inc. | Wireless |
| (815) 768 | Will | Lockport | Ameritech Illinois | Wireless |
| (815) 769 | La Salle | Seneca | Broadwing Communications, Llc - Il | Landline |
| (815) 770 | Mchenry | Harvard | Charter Fiberlink - Illinois, Llc - Il | N/A |
| (815) 771 | Iroquois | Ashkum | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 772 | Whiteside | Morrison | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 773 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 774 | Will | Joliet | Ameritech Illinois | Landline |
| (815) 775 | Mchenry | Woodstock | Usa Mobility Wireless, Inc. | Wireless |
| (815) 776 | Jo Daviess | Galena | Ameritech Illinois | Landline |
| (815) 777 | Jo Daviess | Galena | Ameritech Illinois | Landline |
| (815) 778 | Whiteside | Fenton | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 780 | La Salle | La Salle | Broadwing Communications, Llc - Il | Landline |
| (815) 781 | Iroquois | Chebanse | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 782 | Will | Plainfield | Broadwing Communications, Llc - Il | Landline |
| (815) 783 | Iroquois | Gilman | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 784 | Dekalb | Genoa | Verizon North Inc.-il (contel) | Landline |
| (815) 785 | Iroquois | Watseka | Rcn Telecom Services Of Illinois, Inc. - Il | Landline |
| (815) 786 | Kendall | Newark | Verizon North Inc.-il | Landline |
| (815) 787 | Dekalb | Cortland | Verizon North Inc.-il (contel) | Landline |
| (815) 788 | Mchenry | Crystal Lake | Ameritech Illinois | Landline |
| (815) 789 | Stephenson | Dakota | Verizon North Inc.-il (contel) | Landline |
| (815) 790 | Mchenry | Union | Nextel Communications, Inc. | Wireless |
| (815) 791 | Will | Joliet | Nextel Communications, Inc. | Wireless |
| (815) 792 | La Salle | Earlville | Ameritech Illinois | Landline |
| (815) 793 | Dekalb | Malta | T-mobile Usa, Inc. | Wireless |
| (815) 794 | La Salle | Marseilles | Marseilles Telephone Co. Of Marseilles | Landline |
| (815) 795 | La Salle | Marseilles | Marseilles Telephone Co. Of Marseilles | Landline |
| (815) 796 | Livingston | Flanagan | Frontier Communications Of Prairie, Inc. | Landline |
| (815) 797 | Dekalb | Somonauk | Level 3 Communications, Llc - Il | Landline |
| (815) 798 | Carroll | Milledgeville | Essex Telcom, Inc. | Landline |
| (815) 799 | Kankakee | Hopkins Park | Sprint Communications Company, L.p. - Il | Landline |
| (815) 801 | Stephenson | Freeport | Aero Communications, Inc. - Il | Landline |
| (815) 802 | Kankakee | Kankakee | Ameritech Illinois | Landline |
| (815) 803 | Ogle | Byron | Aero Communications, Inc. - Il | Landline |
| (815) 804 | Winnebago | Pecatonica | Aero Communications, Inc. - Il | Landline |
| (815) 805 | Winnebago | Durand | Aero Communications, Inc. - Il | Landline |
| (815) 806 | Will | Frankfort | Ameritech Illinois | Landline |
| (815) 807 | Stephenson | German Valley | Aero Communications, Inc. - Il | Landline |
| (815) 808 | Stephenson | Winslow | Aero Communications, Inc. - Il | Landline |
| (815) 809 | Stephenson | Lena | Aero Communications, Inc. - Il | Landline |
| (815) 810 | Stephenson | Pearl City | Aero Communications, Inc. - Il | Landline |
| (815) 812 | Stephenson | Dakota | Aero Communications, Inc. - Il | Landline |
| (815) 813 | Jo Daviess | Apple River | Aero Communications, Inc. - Il | Landline |
| (815) 814 | Mchenry | Woodstock | T-mobile Usa, Inc. | Wireless |
| (815) 816 | Stephenson | Freeport | Aero Communications, Inc. - Il | Landline |
| (815) 817 | Jo Daviess | Hanover | Aero Communications, Inc. - Il | Landline |
| (815) 818 | Jo Daviess | Warren | Aero Communications, Inc. - Il | Landline |
| (815) 819 | Stephenson | Orangeville | Aero Communications, Inc. - Il | Landline |
| (815) 820 | Jo Daviess | Elizabeth | Aero Communications, Inc. - Il | Landline |
| (815) 821 | Stephenson | Freeport | United States Cellular Corp. - Illinois | Landline |
| (815) 822 | Livingston | Ancona | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 823 | Will | Joliet | Xo Illinois, Inc. | Landline |
| (815) 824 | Lee | Lee | Verizon North Inc.-il (contel) | Landline |
| (815) 825 | Dekalb | Clare | Verizon North Inc.-il (contel) | Landline |
| (815) 826 | Dekalb | Somonauk | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 827 | Dekalb | Dekalb | Verizon North Inc.-il (contel) | Landline |
| (815) 828 | Grundy | Minooka | Xo Illinois, Inc. | Landline |
| (815) 829 | Carroll | Chadwick | Essex Telcom, Inc. | Landline |
| (815) 830 | La Salle | Oglesby | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 831 | Stephenson | Davis | Aero Communications, Inc. - Il | Landline |
| (815) 832 | Livingston | Fairbury | Frontier Communications Of Illinois, Inc. | Landline |
| (815) 833 | Stephenson | Lena | Aero Communications, Inc. - Il | Landline |
| (815) 834 | Will | Lockport | Ameritech Illinois | Landline |
| (815) 835 | Lee | Dixon | Essex Telcom, Inc. | Landline |
| (815) 836 | Will | Lockport | Ameritech Illinois | Landline |
| (815) 837 | Ogle | Forreston | Aero Communications, Inc. - Il | Landline |
| (815) 838 | Will | Lockport | Ameritech Illinois | Landline |
| (815) 839 | Kankakee | Kankakee | Xo Illinois, Inc. | Landline |
| (815) 840 | Jo Daviess | Stockton | Aero Communications, Inc. - Il | Landline |
| (815) 841 | Ogle | Mount Morris | Essex Telcom, Inc. | Landline |
| (815) 842 | Livingston | Pontiac | Verizon North Inc.-il | Landline |
| (815) 843 | Lee | Ashton | Essex Telcom, Inc. | Landline |
| (815) 844 | Livingston | Pontiac | Verizon North Inc.-il | Landline |
| (815) 845 | Jo Daviess | Elizabeth | Verizon North Inc.-il (contel) | Landline |
| (815) 846 | Will | Romeoville | Broadwing Communications, Llc - Il | Landline |
| (815) 847 | Winnebago | Rockford | Sbc Internet Services, Inc. | Landline |
| (815) 848 | Livingston | Pontiac | Illinois Valley Cellular Rsa 2-iii Partnership | Wireless |
| (815) 849 | Lee | Amboy | Verizon North Inc.-il (contel) | Landline |
| (815) 850 | Stephenson | German Valley | Aero Communications, Inc. - Il | Landline |
| (815) 851 | Will | Joliet | Usa Mobility Wireless, Inc. | Wireless |
| (815) 852 | Will | Romeoville | Aero Communications, Inc. - Il | Landline |
| (815) 853 | La Salle | Streator | Verizon North Inc.-il | Landline |
| (815) 854 | Livingston | Ancona | Verizon North Inc.-il | Landline |
| (815) 855 | Carroll | Milledgeville | Sprint Communications Company, L.p. - Il | N/A |
| (815) 856 | La Salle | Leonore | Leonore Mutual Telephone Co. | Landline |
| (815) 857 | Lee | Amboy | Verizon North Inc.-il (contel) | Landline |
| (815) 858 | Jo Daviess | Elizabeth | Verizon North Inc.-il (contel) | Landline |
| (815) 859 | Lee | Dixon | Essex Telcom, Inc. | Landline |
| (815) 860 | Winnebago | Rockford | Wireless | |
| (815) 861 | Mchenry | Crystal Lake | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 862 | Dekalb | Dekalb | Charter Fiberlink - Illinois, Llc - Il | Wireless |
| (815) 863 | La Salle | Dana | Verizon North Inc.-il | Landline |
| (815) 864 | Stephenson | Pearl City | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 865 | Stephenson | Davis | Verizon North Inc.-il (contel) | Landline |
| (815) 866 | Bureau | Princeton | Illinois Valley Cellular Rsa 2-i Partnership | Wireless |
| (815) 867 | Livingston | Pontiac | Nextel Communications, Inc. | Wireless |
| (815) 868 | Stephenson | Freeport | Verizon North Inc.-il (contel) | Landline |
| (815) 869 | Putnam | Magnolia | Verizon North Inc.-il | Landline |
| (815) 870 | Winnebago | Rockford | Usa Mobility Wireless, Inc. | Wireless |
| (815) 871 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 872 | Bureau | Princeton | Verizon North Inc.-il | Landline |
| (815) 873 | Winnebago | Cherry Valley | Verizon North Inc.-il | Landline |
| (815) 874 | Winnebago | Cherry Valley | Verizon North Inc.-il | Landline |
| (815) 875 | Bureau | Princeton | Verizon North Inc.-il | Landline |
| (815) 876 | Bureau | Ohio | Verizon North Inc.-il | Landline |
| (815) 877 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 878 | Bureau | Princeton | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 879 | Bureau | Princeton | Verizon North Inc.-il | Landline |
| (815) 880 | Mchenry | Woodstock | Xo Illinois, Inc. | Landline |
| (815) 881 | Ogle | Oregon | Essex Telcom, Inc. | Landline |
| (815) 882 | Putnam | Granville | Mcnabb Telephone Co. | Landline |
| (815) 883 | La Salle | Oglesby | Ameritech Illinois | Landline |
| (815) 884 | Mchenry | Harvard | Bandwidth.com Clec, Llc - Il | Landline |
| (815) 885 | Boone | Belvidere | Verizon North Inc.-il | Landline |
| (815) 886 | Will | Plainfield | Ameritech Illinois | Landline |
| (815) 887 | Mchenry | Harvard | Teleport Communications Group - Chicago | Landline |
| (815) 888 | Ogle | Rochelle | Level 3 Communications, Llc - Il | N/A |
| (815) 889 | Iroquois | Milford | Verizon South Inc.-il (alltel) | Landline |
| (815) 890 | Winnebago | Rockford | Aero Communications, Inc. - Il | Landline |
| (815) 891 | Winnebago | Winnebago | Aero Communications, Inc. - Il | Landline |
| (815) 892 | Will | Joliet | Essex Telcom, Inc. | Landline |
| (815) 893 | Mchenry | Crystal Lake | Comcast Phone Of Illinois, Llc - Il | Landline |
| (815) 894 | Bureau | Arlington | Verizon North Inc.-il | Landline |
| (815) 895 | Kane | Maple Park | Verizon North Inc.-il (contel) | Landline |
| (815) 896 | Winnebago | Rockton | Aero Communications, Inc. - Il | Landline |
| (815) 897 | Whiteside | Lyndon | Sprint Communications Company, L.p. - Il | Landline |
| (815) 898 | Jo Daviess | Hanover | Aero Communications, Inc. - Il | Landline |
| (815) 899 | Dekalb | Sycamore | Verizon North Inc.-il (contel) | Landline |
| (815) 900 | Lee | Amboy | Insight Phone Of Illinois, Llc - Il | N/A |
| (815) 901 | Dekalb | Dekalb | Comcast Phone Of Illinois, Llc - Il | Landline |
| (815) 902 | Whiteside | Lyndon | Sprint Communications Company, L.p. - Il | Landline |
| (815) 903 | Mchenry | Mchenry | American Messaging (am), Inc. | Wireless |
| (815) 904 | Winnebago | Rockford | New Cingular Wireless Pcs, Llc - Il | N/A |
| (815) 905 | Will | Romeoville | Level 3 Communications, Llc - Il | Landline |
| (815) 906 | Carroll | Mount Carroll | Sprint Communications Company, L.p. - Il | N/A |
| (815) 907 | Kankakee | Manteno | Broadwing Communications, Llc - Il | Landline |
| (815) 908 | Stephenson | Freeport | Sprint Communications Company, L.p. - Il | Wireless |
| (815) 909 | Dekalb | Dekalb | Sprint Communications Company, L.p. - Il | Landline |
| (815) 910 | La Salle | Mendota | Illinois Valley Cellular Rsa 2-i Partnership | Wireless |
| (815) 912 | Boone | Belvidere | Aero Communications, Inc. - Il | Landline |
| (815) 913 | Will | Joliet | Sprint Communications Company, L.p. - Il | Landline |
| (815) 914 | Winnebago | Rockford | Sprint Spectrum L.p. | Wireless |
| (815) 915 | Grundy | Coal City | Level 3 Communications, Llc - Il | Landline |
| (815) 916 | Kendall | Newark | Nextel Communications, Inc. | Wireless |
| (815) 917 | Ogle | Rochelle | Essex Telcom, Inc. | Landline |
| (815) 918 | Iroquois | Clifton | Level 3 Communications, Llc - Il | Landline |
| (815) 919 | Will | Joliet | T-mobile Usa, Inc. | Wireless |
| (815) 920 | Livingston | Cornell | Sprint Communications Company, L.p. - Il | Landline |
| (815) 921 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 922 | Kankakee | Kankakee | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 923 | Mchenry | Huntley | Ameritech Illinois | Landline |
| (815) 924 | Whiteside | Prophetstown | Essex Telcom, Inc. | Landline |
| (815) 925 | Putnam | Hennepin | Verizon North Inc.-il | Landline |
| (815) 926 | Will | Wilmington | Broadwing Communications, Llc - Il | Landline |
| (815) 927 | Will | Joliet | Broadwing Communications, Llc - Il | Landline |
| (815) 928 | Kankakee | Bourbonnais | Ameritech Illinois | Landline |
| (815) 929 | Kankakee | Bourbonnais | Ameritech Illinois | Landline |
| (815) 930 | Jo Daviess | Elizabeth | Sprint Communications Company, L.p. - Il | Landline |
| (815) 931 | Will | Joliet | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 932 | Kankakee | Bonfield | Ameritech Illinois | Landline |
| (815) 933 | Kankakee | Bonfield | Ameritech Illinois | Landline |
| (815) 934 | Ford | Cabery | Verizon North Inc.-il | Landline |
| (815) 935 | Kankakee | Bourbonnais | Ameritech Illinois | Landline |
| (815) 936 | Kankakee | Bourbonnais | Ameritech Illinois | Landline |
| (815) 937 | Kankakee | Aroma Park | Ameritech Illinois | Landline |
| (815) 938 | Ogle | Baileyville | Verizon North Inc.-il (contel) | Landline |
| (815) 939 | Kankakee | Bourbonnais | Ameritech Illinois | Landline |
| (815) 940 | Grundy | Gardner | Level 3 Communications, Llc - Il | Landline |
| (815) 941 | Grundy | Morris | Ameritech Illinois | Landline |
| (815) 942 | Grundy | Morris | Ameritech Illinois | Landline |
| (815) 943 | Mchenry | Harvard | Ameritech Illinois | Landline |
| (815) 944 | Kankakee | Hopkins Park | Ameritech Illinois | Landline |
| (815) 945 | Mclean | Chenoa | Verizon North Inc.-il | Landline |
| (815) 946 | Lee | Dixon | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 947 | Stephenson | Kent | Verizon North Inc.-il (contel) | Landline |
| (815) 948 | Henry | Annawan | Citizens Telecom Co Illinois-frontier Citizens -il | Landline |
| (815) 949 | Kankakee | Buckingham | Verizon North Inc.-il | Landline |
| (815) 951 | Will | Lockport | Essex Telcom, Inc. | Landline |
| (815) 952 | Carroll | Lanark | Aero Communications, Inc. - Il | N/A |
| (815) 953 | Kankakee | Bourbonnais | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 954 | Kankakee | Bradley | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 955 | Will | Joliet | Nextel Communications, Inc. | Wireless |
| (815) 956 | Whiteside | Morrison | Sprint Communications Company, L.p. - Il | Landline |
| (815) 957 | Winnebago | Rockton | Level 3 Communications, Llc - Il | Landline |
| (815) 960 | Ogle | Leaf River | North County Communications Corp. - Ca | Landline |
| (815) 961 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 962 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 963 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 964 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 965 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 966 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 967 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 968 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 969 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 970 | Dekalb | Sycamore | Nextel Communications, Inc. | Wireless |
| (815) 971 | Winnebago | Loves Park | Ameritech Illinois | Landline |
| (815) 972 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 973 | Lee | Dixon | United States Cellular Corp. - Illinois | Wireless |
| (815) 974 | Henry | Annawan | Essex Telcom, Inc. | Landline |
| (815) 975 | Boone | Belvidere | New Cingular Wireless Pcs, Llc - Il | Wireless |
| (815) 977 | Winnebago | Rockford | Mci Worldcom Communications, Inc. - Il | Landline |
| (815) 978 | Dekalb | Sandwich | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 979 | Winnebago | Rockford | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 980 | Winnebago | Rockford | Cellco Partnership Dba Verizon Wireless - Il | N/A |
| (815) 981 | La Salle | Ottawa | Level 3 Communications, Llc - Il | Landline |
| (815) 982 | Whiteside | Tampico | Essex Telcom, Inc. | Landline |
| (815) 983 | Winnebago | Rockford | American Messaging (am), Inc. | Wireless |
| (815) 984 | Vermilion | Hoopeston | Verizon South Inc.-il (alltel) | Landline |
| (815) 985 | Winnebago | Rockford | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 986 | Winnebago | Loves Park | Us Xchange Of Illinois Llc Dba Choice One Comm Il | Wireless |
| (815) 987 | Winnebago | Rockford | Ameritech Illinois | Landline |
| (815) 988 | Winnebago | Rockford | United States Cellular Corp. - Illinois | Wireless |
| (815) 989 | Whiteside | Prophetstown | Sprint Communications Company, L.p. - Il | Landline |
| (815) 990 | Stephenson | Freeport | Cellco Partnership Dba Verizon Wireless - Il | Wireless |
| (815) 991 | Dekalb | Sycamore | Essex Telcom, Inc. | Landline |
| (815) 992 | La Salle | Streator | Nextel Communications, Inc. | Wireless |
| (815) 993 | La Salle | Oglesby | New Cingular Wireless Pcs, Llc - Il | N/A |
| (815) 994 | Lee | Dixon | Nextel Communications, Inc. | Wireless |
| (815) 995 | Boone | Belvidere | N/A | |
| (815) 996 | Carroll | Savanna | Nextel Communications, Inc. | N/A |
| (815) 997 | Winnebago | Rockford | Mcleodusa Telecommunications Services, Inc.- Il | Landline |
| (815) 998 | Livingston | Odell | Verizon North Inc.-il | Landline |
| (815) 999 | Will | Joliet | United States Cellular Corp. - Illinois | Landline |
Want to Know more about area code 815?
2,870,503
Total Number of Phone Numbers with +1-8151,539,277
Total Number of Owners with +1-8151,560
Total Number of carriers in the area code275
Total Number of cities in the area code81/19
% of Landline vs Wireless phone numbers35.8 y.o.
Average Age$91,229
Medium Home value$48,255
Median Income152,871
Total population3.56%
Crime RateCounties that Use Area Code 815
Iroquois
Lake
Mclean
Bureau
Marshall
Will
Kane
Dekalb
Cook
Lee
Jo Daviess
Kankakee
Boone
Grundy
Ogle
Ford
Livingston
La Salle
Stephenson
Carroll
Winnebago
Mchenry
Whiteside
Putnam
Henry
Shelby
Kendall
Current time in 203 Area Code
14:52 PM on Dec 9, 2023
The 815 area code lies within the Pacific Daylight Time Zone (or PDT)