Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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.

Last updated: Sat, 25 Oct 2014 11:08:09 UTC

How to use this page

NPA: 719 [Rate centres in NPA 719] [Dial plan for NPA 719]

Region: CO

OCN: 2192 BIG SANDY TELECOM, INC. [Rate centres for OCN 2192]

NPA-NXX BLOCK Rate Centre Region Switch LATA Eff date Disc date Map
719-541 A Simla CO SIMLCOXCDS0 658 map

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