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: HNVRNHSCDS0

Remotes:

Switch Switch name Switch type
CANNNHYARS1  CANAAN  5ER 
CHTWNHBRRS1  CHARLESTOWN  5ER 
CLMTNHBRRS1  CLAREMONT  5ER 
ENFDNHNMRS1  ENFIELD  5ER 
LBNNNHBARS1  LEBANON  5ER 
LBNNNHMSRSA  MOUNT SUPPORT  5ER 
LYMENHYARS1  LYME  5ER 
LYMENHYARS2  LYME  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-308 A Hanover NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-640 A Hanover NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-643 A Hanover NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-646 A Hanover NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-653 A Hanover NH 5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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