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: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 920

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
972-920 A De Soto TX DLLSTX97DS8 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552 map
972-920 0 De Soto TX 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552
972-920 1 De Soto TX 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552
972-920 2 De Soto TX 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552
972-920 3 De Soto TX 914G ONVOY, INC. - TX [link] 552 2012-12-14
972-920 4 De Soto TX 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552
972-920 5 De Soto TX 516C SBC INTERNET SERVICES, INC. [link] 552 2011-03-03
972-920 6 De Soto TX 004F BANDWIDTH.COM CLEC, LLC - TX [link] 552 2010-10-28
972-920 7 De Soto TX 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552
972-920 8 De Soto TX 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552
972-920 9 De Soto TX 8833 LOGIX COMMUNICATIONS CORPORATION - TX [link] 552



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