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

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-521 A Allen EACS TX DLLFTXFQDS0  7516 TIME WARNER COMMUNICATIONS AXS OF AUSTIN 552      
972-521 0 Allen EACS TX   7516 TIME WARNER COMMUNICATIONS AXS OF AUSTIN 552      
972-521 1 Allen EACS TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-04-26   
972-521 2 Allen EACS TX   0701 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552   2014-04-21   
972-521 3 Allen EACS TX   903C ONVOY, LLC - TX 552   2012-10-11   
972-521 4 Allen EACS TX   903C ONVOY, LLC - TX 552   2013-12-09   
972-521 5 Allen EACS TX   7516 TIME WARNER COMMUNICATIONS AXS OF AUSTIN 552      
972-521 6 Allen EACS TX   903C ONVOY, LLC - TX 552   2013-12-09   
972-521 7 Allen EACS TX   903C ONVOY, LLC - TX 552   2008-08-02   
972-521 8 Allen EACS TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-521 9 Allen EACS TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.