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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
603-266 Belknap Tilton, NH No New England Tel Op DBA Fairpoint Comm
603-267 Belknap Belmont, NH No New England Tel Op DBA Fairpoint Comm
603-268 Merrimack Suncook, NH No New England Tel Op DBA Fairpoint Comm
603-269 Grafton Rumney, NH Union Telephone Co.
603-270 Hillsborough Manchester, NH Brooks Fiber Communications Of New Hampshire
603-271 Merrimack Concord, NH No New England Tel Op DBA Fairpoint Comm
603-272 Grafton Piermont, NH No New England Tel Op DBA Fairpoint Comm
603-273 Belknap Laconia, NH Brooks Fiber Communications Of New Hampshire
603-274 Rockingham East Kingston, NH Brooks Fiber Communications Of New Hampshire
603-275 Rockingham Derry, NH Omnipoint Miami E License
603-276 Grafton W Lebanon, NH Bell Atlantic Nynex Mobile
603-277 Grafton Hanover, NH Comcast Phone Of New Hampshire
603-278 Coos Jefferson, NH Bretton Woods Telephone Co.
603-279 Belknap Meredith, NH No New England Tel Op DBA Fairpoint Comm
603-280 Strafford Barrington, NH Level 3 Communications
603-281 Hillsborough Nashua, NH No New England Tel Op DBA Fairpoint Comm
603-282 Grafton Canaan, NH Brooks Fiber Communications Of New Hampshire
603-283 Cheshire Keene, NH Paetec Communications
603-284 Carroll North Sandwich, NH No New England Tel Op DBA Fairpoint Comm
603-285 Strafford Dover, NH Brooks Fiber Communications Of New Hampshire
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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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