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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
603-245 Rockingham Portsmouth, NH No New England Tel Op DBA Fairpoint Comm
603-246 Coos Colebrook, NH No New England Tel Op DBA Fairpoint Comm
603-247 Rockingham Derry, NH New Cingular Wireless PCS - DC
603-248 Strafford Dover, NH No New England Tel Op DBA Fairpoint Comm
603-249 Hillsborough Milford, NH No New England Tel Op DBA Fairpoint Comm
603-250 Belknap Meredith, NH Freedom Ring Communications
603-251 Rockingham Salem, NH Paetec Communications
603-252 Grafton W Lebanon, NH United States Cellular Corp. - New Hampshire
603-253 Belknap Meredith, NH No New England Tel Op DBA Fairpoint Comm
603-254 Grafton Plymouth, NH United States Cellular Corp. - New Hampshire
603-255 Coos Colebrook, NH Dixville Telephone Co.
603-256 Cheshire West Chesterfield, NH No New England Tel Op DBA Fairpoint Comm
603-257 Rockingham Plaistow, NH Freedom Ring Communications
603-259 Grafton Littleton, NH Level 3 Communications
603-260 Rockingham Derry, NH Comcast Phone Of New Hampshire
603-261 Hillsborough Merrimack, NH United States Cellular Corp. - New Hampshire
603-262 Hillsborough Merrimack, NH No New England Tel Op DBA Fairpoint Comm
603-263 Hillsborough Manchester, NH Brooks Fiber Communications Of New Hampshire
603-264 Hillsborough Manchester, NH Omnipoint Miami E License
603-265 Hillsborough New Boston, NH Omnipoint Miami E License
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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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