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
603-352 Cheshire Keene, NH No New England Tel Op DBA Fairpoint Comm
603-353 Grafton Orford, NH No New England Tel Op DBA Fairpoint Comm
603-354 Cheshire Keene, NH No New England Tel Op DBA Fairpoint Comm
603-355 Cheshire Keene, NH No New England Tel Op DBA Fairpoint Comm
603-356 Carroll North Conway, NH No New England Tel Op DBA Fairpoint Comm
603-357 Cheshire Keene, NH No New England Tel Op DBA Fairpoint Comm
603-358 Cheshire Keene, NH No New England Tel Op DBA Fairpoint Comm
603-359 Grafton Lebanon, NH Bell Atlantic Nynex Mobile
603-360 Grafton Orford, NH Topsham Communications
603-361 Hillsborough Manchester, NH Bell Atlantic Nynex Mobile
603-362 Rockingham Hampstead, NH No New England Tel Op DBA Fairpoint Comm
603-363 Cheshire Chesterfield, NH No New England Tel Op DBA Fairpoint Comm
603-364 Belknap Gilmanton, NH Union Telephone Co.
603-365 Hillsborough Merrimack, NH Sprint Spectrum L.p.
603-366 Belknap Laconia, NH No New England Tel Op DBA Fairpoint Comm
603-367 Carroll Madison, NH No New England Tel Op DBA Fairpoint Comm
603-369 Merrimack Concord, NH Level 3 Communications
603-370 Rockingham Candia, NH Bell Atlantic Nynex Mobile
603-371 Hillsborough Peterborough, NH Conversent Communications Of New Hampshire
603-372 Sullivan Claremont, NH Freedom Ring Communications
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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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