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.

Ennis, TX

<< 1 2 3

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-872 5 DLLTTXID1MD  6529 T-MOBILE USA, INC. 552   2004-10-15   
972-872 6 FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2013-01-07   
972-872 7 ENNSTXTRDS0  9533 SOUTHWESTERN BELL 552      
972-872 8 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-11-10   
972-872 9 ENNSTXTRDS0  9533 SOUTHWESTERN BELL 552      
972-875 A ENNSTXTRDS0  9533 SOUTHWESTERN BELL 552      

<< 1 2 3

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.