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: CNCRNHSODS1

Remotes:

Switch Switch name Switch type
CNTRNHSHRS1  CANTERBURY  5ER 
DRFDNHCCRS1  DEERFIELD  5ER 
EPSMNHBHRS1  EPSOM  5ER 
PNCKNHCHRS1  PENACOOK  5ER 
PTFDNHBRRS1  PITTSFIELD  5ER 
SNCKNHPARS1  SUNCOOK  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-223 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-224 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-225 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-226 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-228 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-229 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-230 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-271 A Concord NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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