Local Calling Guide

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Wilmer EMS, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-441 A WLMRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-441 0 DLLSTX97DSU  951G INTEGRATED PATH COMMUNICATIONS, LLC - TX 552   2014-09-20   
972-441 1 DLLSTX97DSU  951G INTEGRATED PATH COMMUNICATIONS, LLC - TX 552   2014-09-20   
972-441 2 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-01-13   
972-441 3 WLMRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-441 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-09-25   
972-441 5 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2012-03-12   
972-441 6 WLMRTXXADS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-441 7 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-07-06   
972-441 8 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2013-02-15   
972-441 9 DLLSTXRIZMD  793K TWC IP ENABLED SERVICES, LLC 552   2016-09-09   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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