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: PRVDRIWA2MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
401-251 A Portsmouth RI 343H WIDE VOICE, LLC - RI 130      
401-251 1 Portsmouth RI 343H WIDE VOICE, LLC - RI 130   2016-11-26   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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