New Hampshire Area Codes

The state of New Hampshire is located in the New England region of the northeastern United States of America. It borders:

• Massachusetts to the south
• Vermont to the west
• Maine and the Atlantic Ocean to the east
• Quebec to the north

The state ranks 44th in land area and 41st in population. Standard Time Zone followed by the state is Eastern Time Zone. List of New Hampshire Area Codes is not that long and contains the only code 603.

The North American telephone area code is one of the original eighty six area codes created by NANP (North American Numbering Plan) on October 1947. This is the only area code providing telephone services in the state. It is neither split nor is it ever overlaid. The code is serving all counties of the state including Belknap, Carroll, Cheshire, Coos, Grafton, Hillsborough, Merrimack, Oxford, Rockingham, Strafford, Sullivan and York. Dclogic and Ddlink are the ISPs providing dialup and dedicated services in the state of New Hampshire.
Major companies providing telephone services in New Hampshire are:

• CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ
• CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
• E. RITTER COMMS DBA RITTER COMMUNICATIONS, INC. AR
• MCI WORLDCOM COMMUNICATIONS, INC., CA
• MPOWER NETWORKS SERVICES INC. - CA
• NETWORK SERVICES LLC
• NEW CINGULAR WIRELESS PCS, LLC
• NEW CINGULAR WIRELESS PCS, LLC - GA
• PAC - WEST TELECOMM, INC.
• PACIFIC BELL
• ROYAL STREET COMMUNICATIONS, LLC