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.
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Switch: WEARNHXADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-478 A Hillsboro Upper Village NH 0039 GRANITE STATE TEL., INC. 122      
603-495 A Washington NH 0039 GRANITE STATE TEL., INC. 122      
603-529 A Weare NH 0039 GRANITE STATE TEL., INC. 122      
603-887 A Chester NH 0039 GRANITE STATE TEL., INC. 122      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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