Area code 603 covers part of New Hampshirestate, covering most of Merrimack, Hillsborough, Grafton, Rockingham, Cheshire counties. It was started on Jan 01, 2000. This region follows US/Eastern + Daylight Savings timezone. Other popular area codes that belong to New Hampshire state include .
Date Changed | Change Details |
Jun 01, 2014 | Area code 603-714 was introduced on May 21, 2013 and subscribers are operational from Jun 01, 2014. |
May 25, 2014 | Area code 603-758 was introduced on Mar 02, 2001 and subscribers are operational from May 25, 2014. |
May 25, 2014 | Area code 603-727 subscribers are operational from May 25, 2014. |
May 25, 2014 | Area code 603-790 was introduced on Jun 20, 2003 and subscribers are operational from May 25, 2014. |
May 25, 2014 | Area code 603-757 subscribers are operational from May 25, 2014. |
May 25, 2014 | Area code 603-756 was introduced on Jul 16, 2001 and subscribers are operational from May 25, 2014. |
Area Code | City | County | Population | Network Operator |
603-700 | 348,702 | Intralata Pic Validation | ||
603-701-0 | Rochester | Strafford | 123,143 | IDT America Corporation - NH |
603-702-0 | Hooksett | Rockingham | 295,223 | Bell Atlantic NYNEX Mobile |
603-703-9 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-703-0 | Manchester | Hillsborough | 400,721 | Otel Telekom Inc - NH |
603-705-0 | Manchester | Merrimack | 146,445 | Comcast Phone of New Hampshire LLC - NH |
603-706-7 | Hooksett | Rockingham | 295,223 | Bell Atlantic NYNEX Mobile |
603-706-1 | Manchester | Rockingham | 295,223 | CTC Communications Corporation - NH |
603-706-4 | Manchester | Rockingham | 295,223 | DSCI Corporation - NH |
603-706-8 | Manchester | Rockingham | 295,223 | Omnipoint Miami E License LLC |
603-706-0 | Nashua | Rockingham | 295,223 | Conversent Communications of New Hampshire LLC |
603-707-0 | Hooksett | Belknap | 60,088 | Bell Atlantic NYNEX Mobile |
603-707-3 | Manchester | Belknap | 60,088 | CTC Communications Corporation - NH |
603-707-5 | Manchester | Belknap | 60,088 | DSCI Corporation - MA |
603-707-4 | Manchester | Belknap | 60,088 | Level 3 Communications LLC - NH |
603-707-8 | Manchester | Belknap | 60,088 | Omnipoint Miami E License LLC |
603-708-0 | Manchester | Merrimack | 146,445 | Comcast Phone of New Hampshire LLC - NH |
603-709-7 | Manchester | Sullivan | 43,742 | Comcast Phone of New Hampshire LLC - NH |
603-709-0 | Manchester | Sullivan | 43,742 | Level 3 Communications LLC - NH |
603-710-0 | Contoocook | Merrimack | 146,445 | Merrimack County Telephone Company |
603-711 | 484,713 | Telecommunications Relay Service | ||
603-712-0 | Manchester | Grafton | 89,118 | Brooks Fiber Communications of New Hampshire - NH |
603-712-5 | Manchester | Grafton | 89,118 | Level 3 Communications LLC - NH |
603-714-0 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-715-7 | Derry | Merrimack | 146,445 | New Cingular Wireless PCS LLC - DC |
603-715-8 | Hooksett | Merrimack | 146,445 | Bell Atlantic NYNEX Mobile |
603-715-0 | Manchester | Merrimack | 146,445 | Comcast Phone of New Hampshire LLC - NH |
603-715-3 | Manchester | Merrimack | 146,445 | CTC Communications Corporation - NH |
603-716-7 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-716-0 | Manchester | Hillsborough | 400,721 | CRC Communications of Maine Inc - NH |
603-717-2 | Derry | Merrimack | 146,445 | New Cingular Wireless PCS LLC - DC |
603-717-8 | Hooksett | Merrimack | 146,445 | Bell Atlantic NYNEX Mobile |
603-717-0 | Manchester | Merrimack | 146,445 | Choice One Communications of New Hampshire Inc |
603-717-4 | Manchester | Merrimack | 146,445 | Omnipoint Miami E License LLC |
603-717-3 | Salem | Merrimack | 146,445 | Broadview Networks Inc - NH |
603-718-0 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-718-8 | Manchester | Hillsborough | 400,721 | Comcast Phone of New Hampshire LLC - NH |
603-718-6 | Manchester | Hillsborough | 400,721 | CRC Communications of Maine Inc - NH |
603-718-3 | Manchester | Hillsborough | 400,721 | Level 3 Communications LLC - NH |
603-718-7 | Manchester | Hillsborough | 400,721 | National Mobile Communications Corporation - VT |
603-719-0 | Portsmouth | Cheshire | 77,117 | Freedom Ring Communications LLC |
603-721-5 | Manchester | Hillsborough | 400,721 | Charter Fiberlink NH - CCO - LLC - NH |
603-721-4 | Manchester | Hillsborough | 400,721 | Paetec Communications Inc - NH |
603-721-0 | Manchester | Hillsborough | 400,721 | Sprint Spectrum LP |
603-721-0 | Portsmouth | Hillsborough | 400,721 | Freedom Ring Communications LLC |
603-721-7 | Salem | Hillsborough | 400,721 | Broadview Networks Inc - NH |
603-722-9 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-722-0 | Manchester | Hillsborough | 400,721 | Bandwidth.com CLEC LLC - NH |
603-722-2 | Manchester | Hillsborough | 400,721 | Comcast Phone of New Hampshire LLC - NH |
603-723 | Merrimack | Coos | 33,055 | United States Cellular - NH |
603-724-9 | Hooksett | Merrimack | 146,445 | Bell Atlantic NYNEX Mobile |
603-724-0 | Manchester | Merrimack | 146,445 | Paetec Communications Inc - NH |
603-725-0 | Manchester | Carroll | 47,818 | Level 3 Communications LLC - NH |
603-726-0 | Campton | Grafton | 89,118 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-726-6 | Hooksett | Grafton | 89,118 | Bell Atlantic NYNEX Mobile |
603-726-5 | Manchester | Grafton | 89,118 | CRC Communications of Maine Inc - NH |
603-727-8 | Hooksett | Grafton | 89,118 | Bell Atlantic NYNEX Mobile |
603-727-9 | Manchester | Grafton | 89,118 | Comcast Phone of New Hampshire LLC - NH |
603-727-4 | Manchester | Grafton | 89,118 | Level 3 Communications LLC - NH |
603-727-0 | Manchester | Grafton | 89,118 | Lightship Telecom LLC - NH |
603-727-5 | Manchester | Grafton | 89,118 | Paetec Communications Inc - NH |
603-727-7 | Portsmouth | Grafton | 89,118 | Freedom Ring Communications LLC |
603-727-1 | Portsmouth | Grafton | 89,118 | Sprint Spectrum LP |
603-728-9 | Hooksett | Grafton | 89,118 | Bell Atlantic NYNEX Mobile |
603-728-6 | Manchester | Grafton | 89,118 | CRC Communications of Maine Inc - NH |
603-728-3 | Manchester | Grafton | 89,118 | CTC Communications Corporation - NH |
603-728-0 | Manchester | Grafton | 89,118 | Level 3 Communications LLC - NH |
603-728-2 | Manchester | Grafton | 89,118 | Otel Telekom Inc - NH |
603-729-7 | Derry | Belknap | 60,088 | New Cingular Wireless PCS LLC - DC |
603-729-2 | Manchester | Belknap | 60,088 | AT&T Local |
603-729-0 | Manchester | Belknap | 60,088 | Brooks Fiber Communications of New Hampshire - NH |
603-729-8 | Manchester | Belknap | 60,088 | CTC Communications Corporation - NH |
603-729-3 | Manchester | Belknap | 60,088 | Level 3 Communications LLC - NH |
603-729-5 | Manchester | Belknap | 60,088 | Lightship Telecom LLC - NH |
603-729-4 | Manchester | Belknap | 60,088 | Otel Telekom Inc - NH |
603-729-9 | Manchester | Belknap | 60,088 | Paetec Communications Inc - NH |
603-729-1 | Portsmouth | Belknap | 60,088 | Freedom Ring Communications LLC |
603-729-0 | Rochester | Belknap | 60,088 | IDT America Corporation - NH |
603-730-7 | Hooksett | Carroll | 47,818 | Bell Atlantic NYNEX Mobile |
603-730-0 | Manchester | Carroll | 47,818 | Brooks Fiber Communications of New Hampshire - NH |
603-730-0 | Manchester | Carroll | 47,818 | Lightship Telecom LLC - NH |
603-730-5 | Manchester | Carroll | 47,818 | Time Warner Cable Information Services (New Hampshire) LLC dba Time Warner Cable - NH |
603-730-1 | Portsmouth | Carroll | 47,818 | Freedom Ring Communications LLC |
603-731 | Hooksett | Merrimack | 146,445 | Bell Atlantic NYNEX Mobile |
603-732-8 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-732-0 | Manchester | Hillsborough | 400,721 | Brooks Fiber Communications of New Hampshire - NH |
603-732-4 | Manchester | Hillsborough | 400,721 | Choice One Communications of New Hampshire Inc |
603-732-5 | Manchester | Hillsborough | 400,721 | Otel Telekom Inc - NH |
603-732-1 | Manchester | Hillsborough | 400,721 | Paetec Communications Inc - NH |
603-733-9 | Derry | Carroll | 47,818 | New Cingular Wireless PCS LLC - DC |
603-733-8 | Hooksett | Carroll | 47,818 | Bell Atlantic NYNEX Mobile |
603-733-3 | Manchester | Carroll | 47,818 | AT&T Local |
603-733-5 | Manchester | Carroll | 47,818 | CRC Communications of Maine Inc - NH |
603-733-1 | Manchester | Carroll | 47,818 | CTC Communications Corporation - NH |
603-733-0 | Manchester | Carroll | 47,818 | Level 3 Communications LLC - NH |
603-733-2 | Manchester | Carroll | 47,818 | Otel Telekom Inc - NH |
603-734-0 | Manchester | Rockingham | 295,223 | Brooks Fiber Communications of New Hampshire - NH |
603-734-4 | Manchester | Rockingham | 295,223 | Comcast Phone of New Hampshire LLC - NH |
603-734-5 | Manchester | Rockingham | 295,223 | Level 3 Communications LLC - NH |
603-735-0 | Andover | Merrimack | 146,445 | Kearsarge Telephone Company |
603-736-0 | Epsom | Merrimack | 146,445 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-736-6 | Portsmouth | Merrimack | 146,445 | Freedom Ring Communications LLC |
603-737 | Portsmouth | Belknap | 60,088 | Freedom Ring Communications LLC |
603-738 | Derry | Merrimack | 146,445 | New Cingular Wireless PCS LLC - DC |
603-739-2 | Hooksett | Grafton | 89,118 | Bell Atlantic NYNEX Mobile |
603-740 | Dover | Strafford | 123,143 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-741-0 | Manchester | Hillsborough | 400,721 | Bandwidth.com CLEC LLC - NH |
603-742 | Dover | Strafford | 123,143 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-743 | Dover | Strafford | 123,143 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-744 | Bristol | Grafton | 89,118 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-745-7 | Manchester | Grafton | 89,118 | Time Warner Cable Information Services (New Hampshire) LLC dba Time Warner Cable - NH |
603-746-0 | Contoocook | Merrimack | 146,445 | Merrimack County Telephone Company |
603-747-5 | Manchester | Grafton | 89,118 | AT&T Local |
603-747-9 | Manchester | Grafton | 89,118 | Paetec Communications Inc - NH |
603-748-0 | Hooksett | Merrimack | 146,445 | Bell Atlantic NYNEX Mobile |
603-749 | Dover | Strafford | 123,143 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-750-0 | Dover | Strafford | 123,143 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-751-0 | Manchester | Hillsborough | 400,721 | Brooks Fiber Communications of New Hampshire - NH |
603-751-5 | Manchester | Hillsborough | 400,721 | Lightship Telecom LLC |
603-752 | Berlin | Coos | 33,055 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-753-2 | Manchester | Merrimack | 146,445 | Comcast Phone of New Hampshire LLC - NH |
603-753-0 | Penacook | Merrimack | 146,445 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-754-0 | Portsmouth | Coos | 33,055 | Freedom Ring Communications LLC |
603-755-5 | Dover | Strafford | 123,143 | CTC Communications Corporation - NH |
603-755-8 | Manchester | Strafford | 123,143 | Otel Telekom Inc - NH |
603-756-8 | Manchester | Cheshire | 77,117 | AT&T Local |
603-756-6 | Manchester | Cheshire | 77,117 | Level 3 Communications LLC - NH |
603-757-8 | Hooksett | Cheshire | 77,117 | Bell Atlantic NYNEX Mobile |
603-757-4 | Manchester | Cheshire | 77,117 | DSCI Corporation - NH |
603-758-3 | Manchester | Rockingham | 295,223 | Brooks Fiber Communications of New Hampshire - NH |
603-758-4 | Manchester | Rockingham | 295,223 | Level 3 Communications LLC - NH |
603-758-7 | Portsmouth | Rockingham | 295,223 | Freedom Ring Communications LLC |
603-759 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-760-1 | Dover | Rockingham | 295,223 | CTC Communications Corporation - NH |
603-760-2 | Manchester | Rockingham | 295,223 | Comcast Phone of New Hampshire LLC - NH |
603-760-8 | Manchester | Rockingham | 295,223 | Omnipoint Miami E License LLC |
603-760-6 | Salem | Rockingham | 295,223 | Broadview Networks Inc - NH |
603-761-0 | Portsmouth | Grafton | 89,118 | Freedom Ring Communications LLC |
603-762-8 | Derry | Cheshire | 77,117 | New Cingular Wireless PCS LLC - DC |
603-763-1 | Manchester | Sullivan | 43,742 | Comcast Phone of New Hampshire LLC - NH |
603-764-1 | Manchester | Grafton | 89,118 | CRC Communications of Maine Inc - NH |
603-764-0 | Warren | Grafton | 89,118 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-765 | Portsmouth | Hillsborough | 400,721 | Sprint Spectrum LP |
603-766 | Portsmouth | Rockingham | 295,223 | Freedom Ring Communications LLC |
603-767 | Derry | Strafford | 123,143 | New Cingular Wireless PCS LLC - DC |
603-768-0 | Danbury | Merrimack | 146,445 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-769-9 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-769-2 | Manchester | Hillsborough | 400,721 | Paetec Communications Inc - NH |
603-770 | Hooksett | Rockingham | 295,223 | Bell Atlantic NYNEX Mobile |
603-771 | Manchester | Hillsborough | 400,721 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-772 | Exeter | Rockingham | 295,223 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-773-0 | Exeter | Rockingham | 295,223 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-774 | Dunbarton | Merrimack | 146,445 | Dunbarton Telephone Company |
603-775-0 | Exeter | Rockingham | 295,223 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-776 | Barnstead | Belknap | 60,088 | Union Telephone Company - NH |
603-777-2 | Derry | Rockingham | 295,223 | New Cingular Wireless PCS LLC - DC |
603-777-1 | Portsmouth | Rockingham | 295,223 | Freedom Ring Communications LLC |
603-778 | Exeter | Rockingham | 295,223 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-779-0 | Manchester | Grafton | 89,118 | Brooks Fiber Communications of New Hampshire - NH |
603-780-0 | Manchester | Grafton | 89,118 | Level 3 Communications LLC - NH |
603-781 | Derry | Strafford | 123,143 | New Cingular Wireless PCS LLC - DC |
603-782-6 | Hooksett | Hillsborough | 400,721 | Bell Atlantic NYNEX Mobile |
603-782-2 | Manchester | Hillsborough | 400,721 | Paetec Communications Inc - NH |
603-783-0 | Canterbury | Merrimack | 146,445 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-783-6 | Manchester | Merrimack | 146,445 | Sprint Spectrum LP |
603-784-0 | Manchester | Hillsborough | 400,721 | Brooks Fiber Communications of New Hampshire - NH |
603-784-2 | Manchester | Hillsborough | 400,721 | Lightship Telecom LLC - NH |
603-785 | Derry | Hillsborough | 400,721 | New Cingular Wireless PCS LLC - DC |
603-786-5 | Manchester | Grafton | 89,118 | CRC Communications of Maine Inc - NH |
603-786-6 | Manchester | Grafton | 89,118 | Time Warner Cable Information Services (New Hampshire) LLC dba Time Warner Cable - NH |
603-787-3 | Manchester | Grafton | 89,118 | Brooks Fiber Communications of New Hampshire - NH |
603-787-8 | Manchester | Grafton | 89,118 | Time Warner Cable Information Services (New Hampshire) LLC dba Time Warner Cable - NH |
603-788-0 | Lancaster | Coos | 33,055 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-789-0 | Portsmouth | Merrimack | 146,445 | Freedom Ring Communications LLC |
603-790-0 | Hooksett | Grafton | 89,118 | Bell Atlantic NYNEX Mobile |
603-790-1 | Manchester | Grafton | 89,118 | CTC Communications Corporation - NH |
603-791-4 | Manchester | Hillsborough | 400,721 | Paetec Communications Inc - NH |
603-792 | Portsmouth | Hillsborough | 400,721 | Freedom Ring Communications LLC |
603-793-7 | Derry | Rockingham | 295,223 | New Cingular Wireless PCS LLC - DC |
603-795-0 | Lyme | Grafton | 89,118 | Northern New England Telephone Operations LLC dba FairPoint Comm - NH |
603-795-6 | Manchester | Grafton | 89,118 | Level 3 Communications LLC - NH |
603-796-0 | Boscawen | Merrimack | 146,445 | Kearsarge Telephone Company |
603-797-0 | Manchester | Rockingham | 295,223 | Brooks Fiber Communications of New Hampshire - NH |
603-798-0 | Chichester | Merrimack | 146,445 | Kearsarge Telephone Company |
603-799 | Portsmouth | Hillsborough | 400,721 | Sprint Spectrum LP |
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