Area Code 603 Details

State : New Hampshire
Major City : Manchester
Timezone : Eastern

603 is the North American telephone area code for the state of New Hampshire, including the cities of Concord, Derry, Dover, Keene, Manchester, Nashua, Portsmouth, and Rochester.

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Prefix Primary City Company County Usage
603-203-#### Manchester, NH New Cingular Wireless PCS - DC Hillsborough Cell Number
603-204-#### Nashua, NH United States Cellular Corp. - New Hampshire Hillsborough Cell Number
603-205-#### Portsmouth, NH Omnipoint Miami E License Rockingham Cell Number
603-206-#### Manchester, NH Paetec Communications Hillsborough Landline
603-208-#### Lyme, NH United States Cellular Corp. - New Hampshire Grafton Cell Number
603-209-#### Keene, NH United States Cellular Corp. - New Hampshire Cheshire Cell Number
603-210-#### Manchester, NH Comcast Phone Of New Hampshire Hillsborough Landline
603-212-#### Salem, NH No New England Tel Op DBA Fairpoint Comm Rockingham Landline
603-213-#### Unknown
603-214-#### Errol, NH Freedom Ring Communications Coos Landline
603-215-#### Berlin, NH Freedom Ring Communications Coos Landline
603-216-#### Manchester, NH Comcast Phone Of New Hampshire Hillsborough Landline
603-217-#### Bristol, NH Rnk Grafton Landline
603-218-#### Manchester, NH Broadview Networks Hillsborough Landline
603-219-#### Concord, NH Sprint Spectrum L.p. Merrimack Cell Number
603-221-#### Nashua, NH No New England Tel Op DBA Fairpoint Comm Hillsborough Cell Number
603-222-#### Manchester, NH No New England Tel Op DBA Fairpoint Comm Hillsborough Landline
603-223-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-224-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-225-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-226-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-227-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-228-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-229-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-230-#### Concord, NH No New England Tel Op DBA Fairpoint Comm Merrimack Landline
603-231-#### Derry, NH Nextel Communications Rockingham Cell Number
603-232-#### Manchester, NH Comcast Phone Of New Hampshire Hillsborough Landline
603-233-#### Nashua, NH Omnipoint Miami E License Hillsborough Cell Number
603-234-#### Derry, NH Nextel Communications Rockingham Cell Number
603-235-#### Derry, NH Nextel Communications Rockingham Cell Number
603-236-#### Wonalancet, NH No New England Tel Op DBA Fairpoint Comm Carroll Landline
603-237-#### Colebrook, NH No New England Tel Op DBA Fairpoint Comm Coos Landline
603-238-#### Plymouth, NH Paetec Communications Grafton Landline
603-239-#### Winchester, NH No New England Tel Op DBA Fairpoint Comm Cheshire Landline
603-240-#### Manchester, NH No New England Tel Op DBA Fairpoint Comm Hillsborough Cell Number
603-241-#### Manchester, NH No New England Tel Op DBA Fairpoint Comm Hillsborough Cell Number
603-242-#### Troy, NH No New England Tel Op DBA Fairpoint Comm Cheshire Landline
603-244-#### Manchester, NH Comcast Phone Of New Hampshire Hillsborough Landline
603-245-#### Portsmouth, NH No New England Tel Op DBA Fairpoint Comm Rockingham Landline
603-246-#### Colebrook, NH No New England Tel Op DBA Fairpoint Comm Coos Landline
603-247-#### Derry, NH New Cingular Wireless PCS - DC Rockingham Cell Number
603-248-#### Dover, NH No New England Tel Op DBA Fairpoint Comm Strafford Cell Number
603-249-#### Milford, NH No New England Tel Op DBA Fairpoint Comm Hillsborough Landline
603-250-#### Meredith, NH Freedom Ring Communications Belknap Landline
603-251-#### Salem, NH Global Naps Rockingham Landline
603-252-#### W Lebanon, NH United States Cellular Corp. - New Hampshire Grafton Cell Number
603-253-#### Meredith, NH No New England Tel Op DBA Fairpoint Comm Belknap Landline
603-254-#### Plymouth, NH United States Cellular Corp. - New Hampshire Grafton Cell Number
603-255-#### Colebrook, NH Dixville Telephone Co. Coos Landline
603-256-#### West Chesterfield, NH No New England Tel Op DBA Fairpoint Comm Cheshire Landline
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