Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: MNCHNHCOX4Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-620 5 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-620 6 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-620 7 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-620 8 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-620 9 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-631 A Lancaster NH 6290 UNITED STATES CELLULAR - NH 122      
603-631 0 Lancaster NH 6290 UNITED STATES CELLULAR - NH 122      
603-631 1 Lancaster NH 6290 UNITED STATES CELLULAR - NH 122      
603-631 2 Lancaster NH 6290 UNITED STATES CELLULAR - NH 122      
603-631 3 Lancaster NH 6290 UNITED STATES CELLULAR - NH 122      
603-631 9 Lancaster NH 6290 UNITED STATES CELLULAR - NH 122      
603-651 A Center Ossipee NH 6290 UNITED STATES CELLULAR - NH 122      
603-651 5 Center Ossipee NH 6290 UNITED STATES CELLULAR - NH 122      
603-651 6 Center Ossipee NH 6290 UNITED STATES CELLULAR - NH 122      
603-651 7 Center Ossipee NH 6290 UNITED STATES CELLULAR - NH 122      
603-651 8 Center Ossipee NH 6290 UNITED STATES CELLULAR - NH 122      
603-651 9 Center Ossipee NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 A Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 3 Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 4 Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 5 Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 6 Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 7 Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 8 Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-662 9 Conway NH 6290 UNITED STATES CELLULAR - NH 122      
603-680 0 Hillsboro NH 6290 UNITED STATES CELLULAR - NH 122      
603-680 1 Hillsboro NH 6290 UNITED STATES CELLULAR - NH 122      
603-680 9 Hillsboro NH 6290 UNITED STATES CELLULAR - NH 122   2016-06-02   
603-690 5 Claremont NH 6290 UNITED STATES CELLULAR - NH 122   2005-09-22   
603-723 A Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 0 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 1 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 2 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 3 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 4 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 5 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 6 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 7 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 8 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-723 9 Berlin NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 A Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 0 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 1 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 2 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 3 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 4 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 5 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 6 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 7 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-848 8 Concord NH 6290 UNITED STATES CELLULAR - NH 122      

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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