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Area code 408

Area code 408 covers the state of California and is used in areas covering subdivision Bay Area. Area code 408 came into being on 1st January 1959 as a result of area code 415 split. The area split again on 11th July 1998 and area code 831 was allocated to certain areas of:

  • Santa Cruz County
  • Monterey County
  • San Benito County

Area codes sharing the boundaries of Bay Area in California are:

  • Area Code 510 (created in 1991)
  • Area Code 415 (created in 1947)
  • Area Code 707 (created in 1959)
  • Area Code 925 (created in 1998)

Till late 1970s, telephone customers of area code 408 and code 415 could dial seven digit numbers across the areas without dialing area code. There was no duplication of phone numbers at that time. With the passage of time, population spurt and technology advancement went beyond the capacity of this accommodating dialing plan. Therefore more splits occurred and now a days it becomes obligatory using area code with phone numbers to avoid duplication and accurate delivery of calls.

Areas get exhausted when no more phone numbers are available. To get rid of the problem areas are split into further smaller portions. New and unique code is given to each newly created portion. Adding new codes in existing areas make it possible to provide telephone services more efficiently and resourcefully. Phone numbers can be repeated while keeping the code distinctive.

Counties in area code 408:


Code 408 is divided among sixteen counties.
  • ALAMEDA
  • CONTRA COSTA
  • KERN
  • LOS ANGELES
  • MARIN
  • MONTEREY
  • ORANGE
  • SACRAMENTO
  • SAN BENITO
  • SAN DIEGO
  • SAN FRANCISCO
  • SAN LUIS OBISPO
  • SAN MATEO
  • SANTA CLARA
  • SANTA CRUZ
  • SONOMA

Cities in area Code 408:

Code 408 is serving following cities of Bay Area;
  • Alviso
  • Campbell
  • Coyote
  • Cupertino
  • Gilroy
  • Holy City
  • Los Gatos
  • Milpitas
  • Morgan Hill
  • Mount Hamilton
  • New Almaden
  • Redwood Estates
  • San Jose
  • San Martin
  • Santa Clara
  • Saratoga
  • Sunnyvale

Major Telephone Companies and ISPs in area code 408:

Some of the major telephone companies offering services for various areas in code 408 are:
  • ALLTEL COMMUNICATIONS, INC. - AR
  • BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL
  • COMCAST PHONE OF CALIFORNIA, LLC  - CA
  • DELTACOM, INC. - AL
  • DIGITCOM SERVICES, INC.
  • LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
  • LEVEL 3 COMMUNICATIONS, LLC - AL
  • MPOWER COMMUNICATIONS CORP. - CA
  • NETWORK SERVICES LLC
  • NEW CINGULAR WIRELESS PCS, LLC
  • O1 COMMUNICATIONS, INC. - CA
  • PACIFIC BELL
  • PAETEC COMMUNICATIONS, INC. - CA
  • QWEST CORPORATION
  • TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
  • U.S. TELEPACIFIC CORP. - CA
  • XO CALIFORNIA, INC.
On the other hand some of the leading ISPs serving different areas of code 408 are:
  • A 1 Excel Internet
  • A $7.50 Access
  • A 007 Access
  • A plus Access
  • A Silicon Networks
  • A Value Access Providers--- VAP
  • A1 Best Solvnet
  • Ace Dialup
  • Allegiance Internet
  • America Internet Services

Reverse Phone Check Look Up in Area Code 408:


 "Reverse phone search" requires phone number along with appropriate code to get details regarding that number. If you are not sure about code of particular area then browse the area code directory. Majority of the online reverse phone look up directories charge you for getting exact information. However online reverse phone directories are also available through which you can find owner's identity of any number along with exact code.

Mistakenly if you enter phone number with wrong code then you definitely get improper information. Therefore it is not only important to have a correct phone number but the code for particular area gains equal significance. Entering wrong code would provide you with wrongs information. Code also refines the search and reverse directory look only into database associated with that particular code.

If number starts with a three digit code 408 then perform reverse Phone Search through reverse phone directory designed for phone numbers with code 408.