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
603-290 8 Concord NH 6290 UNITED STATES CELLULAR - NH 122      
603-304 A Enfield NH 6290 UNITED STATES CELLULAR - NH 122      
603-304 5 Enfield NH 6290 UNITED STATES CELLULAR - NH 122      
603-304 6 Enfield NH 6290 UNITED STATES CELLULAR - NH 122      
603-304 7 Enfield NH 6290 UNITED STATES CELLULAR - NH 122      
603-304 8 Enfield NH 6290 UNITED STATES CELLULAR - NH 122      
603-304 9 Enfield NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 A Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 0 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 1 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 2 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 3 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 4 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 5 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 6 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 7 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 8 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-313 9 Keene NH 6290 UNITED STATES CELLULAR - NH 122      
603-326 9 Berlin NH 6290 UNITED STATES CELLULAR - NH 122   2007-03-14   
603-341 A Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-341 5 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-342 9 Berlin NH 6290 UNITED STATES CELLULAR - NH 122   2007-10-17   
603-344 A Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 0 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 1 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 2 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 3 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 4 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 5 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 6 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 7 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 8 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-344 9 Suncook NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 A Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 0 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 1 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 2 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 3 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 4 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 5 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 6 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 7 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 8 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-345 9 Merrimack NH 6290 UNITED STATES CELLULAR - NH 122      
603-348 A North Woodstock NH 6290 UNITED STATES CELLULAR - NH 122      
603-348 6 North Woodstock NH 6290 UNITED STATES CELLULAR - NH 122      
603-348 7 North Woodstock NH 6290 UNITED STATES CELLULAR - NH 122      
603-348 8 North Woodstock NH 6290 UNITED STATES CELLULAR - NH 122      
603-349 A West Lebanon NH 6290 UNITED STATES CELLULAR - NH 122      
603-349 6 West Lebanon NH 6290 UNITED STATES CELLULAR - NH 122      

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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