Local Calling Guide

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Crandall, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-472 3 DLLSTXSEDS0  9533 SOUTHWESTERN BELL 552      
972-472 4 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-12-14   
972-472 5 RCSNTXHVBMD  516C AT&T CORP. 552   2010-11-29   
972-472 6 FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-14   
972-472 7 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-11-26   
972-472 8 DLLSTX97X1X  073H TELNYX LLC 552   2017-06-19   
972-472 9 DLLSTXSEDS0  9533 SOUTHWESTERN BELL 552      

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

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