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: 283 [Rate centres in NPA 283] [Dial plan for NPA 283]

Block: A

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

Last updated: Fri, 14 Jul 2017 01:22:02 UTC

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