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Area Code 603

603 is the North American Telephone Area Code For New Hampshire in United States.
District of New Hampshire area codes: 603
Country United States
State/Province New Hampshire
Major City Manchester
Time Zone Eastern (UTC-05:00)

Phone directory with area code 603

Prefix County Primary City Company
603-309 Sullivan Newport, NH Bell Atlantic Nynex Mobile
603-310 Hillsborough Bedford, NH Ctc Communications Corp.
603-312 Strafford Dover, NH Bell Atlantic Nynex Mobile
603-313 Cheshire Keene, NH United States Cellular Corp. - New Hampshire
603-314 Hillsborough Manchester, NH Lightship Telecom
603-315 Hillsborough Manchester, NH Bell Atlantic Nynex Mobile
603-317 Coos Milan, NH Brooks Fiber Communications Of New Hampshire
603-318 Hillsborough Nashua, NH Bell Atlantic Nynex Mobile
603-319 Rockingham Portsmouth, NH Lightship Telecom
603-320 Hillsborough Nashua, NH New Cingular Wireless PCS - DC
603-321 Hillsborough Nashua, NH Bell Atlantic Nynex Mobile
603-322 Grafton W Lebanon, NH New Cingular Wireless PCS - DC
603-323 Carroll Tamworth, NH No New England Tel Op DBA Fairpoint Comm
603-324 Hillsborough Nashua, NH Brooks Fiber Communications Of New Hampshire
603-325 Hillsborough Manchester, NH Brooks Fiber Communications Of New Hampshire
603-326 Coos Berlin, NH Level 3 Communications
603-327 Rockingham Salem, NH Lightship Telecom
603-328 Rockingham Salem, NH Paetec Communications
603-329 Rockingham Hampstead, NH No New England Tel Op DBA Fairpoint Comm
603-330 Strafford Rochester, NH No New England Tel Op DBA Fairpoint Comm
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There are 691 prefixes, In the code area, the major cities are Concord, NH;Derry, NH;Dover, NH;Keene, NH;Manchest. The major city is Manchester.

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