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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
603-286 Belknap Tilton, NH No New England Tel Op DBA Fairpoint Comm
603-287 Sullivan Claremont, NH Level 3 Communications
603-289 Hillsborough Manchester, NH New Cingular Wireless PCS - DC
603-290 Merrimack Concord, NH United States Cellular Corp. - New Hampshire
603-291 Hillsborough Greenville, NH Comcast Phone Of New Hampshire
603-292 Rockingham Newmarket, NH Comcast Phone Of New Hampshire
603-293 Belknap Laconia, NH No New England Tel Op DBA Fairpoint Comm
603-294 Rockingham Portsmouth, NH Level 3 Communications
603-295 Strafford Durham, NH Paetec Communications
603-296 Hillsborough Manchester, NH Choice One Communications Of New Hampshire
603-297 Carroll Ctr Ossipee, NH Freedom Ring Communications
603-298 Grafton W Lebanon, NH No New England Tel Op DBA Fairpoint Comm
603-300 Rockingham Chester, NH Sprint Spectrum L.p.
603-301 Carroll Ctr Ossipee, NH Level 3 Communications
603-302 Hillsborough Manchester, NH No New England Tel Op DBA Fairpoint Comm
603-303 Hillsborough Manchester, NH Bell Atlantic Nynex Mobile
603-304 Grafton Enfield, NH United States Cellular Corp. - New Hampshire
603-305 Hillsborough Bedford, NH Bell Atlantic Nynex Mobile
603-306 Grafton Lebanon, NH National Mobile Communications Corporation - VT
603-307 Carroll North Conway, NH Bell Atlantic Nynex Mobile
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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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