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.

NPA: 227 [Rate centres in NPA 227] [Dial plan for NPA 227]

Block: A

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

Last updated: Tue, 14 Mar 2017 01:39:47 UTC

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