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.

OCN: 7982 CAPROCK TELECOMMUNICATIONS CORP. - TX

<< 1 2 3 4 5 6 7 8

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
972-338 3 Dallas TX   552   2012-02-17   
972-348 5 Dallas TX   552   2013-02-13   
972-349 4 Dallas TX   552   2016-12-26   
972-400 4 Grand Prairie EMS TX   552   2007-05-16   
972-587 2 Dallas TX   552   2011-03-31   
972-638 5 Dallas TX   552   2010-09-20   
972-763 8 Dallas TX   552   2011-06-10   
972-850 5 Dallas TX   552   2011-07-22   
972-865 8 Dallas TX   552   2012-04-13   
972-889 7 Dallas TX   552   2012-08-27   
972-942 2 Dallas TX   552   2018-05-29   
972-972 1 Dallas TX   552   2017-12-18   
972-972 2 Dallas TX   552   2017-12-18   
972-972 3 Dallas TX   552   2017-12-18   
972-996 0 Dallas TX   552   2007-06-11   
972-996 3 Dallas TX   552   2009-10-20   
972-996 5 Dallas TX   552   2008-06-29   
979-230 1 Freeport TX   560   2015-02-13   
979-267 8 Angleton TX   560   2015-03-06   
979-482 5 Freeport TX   560   2014-08-23   
979-636 5 Wharton TX   560   2013-03-27   
979-730 8 Freeport TX   560   2015-02-11   

<< 1 2 3 4 5 6 7 8

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.