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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NPA: 274 [Rate centres in NPA 274] [Dial plan for NPA 274]

Block: A

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date

Last updated: Thu, 31 Jan 2019 11:20:40 UTC

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