Local Calling Guide

Area code/prefix search

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

NXX: 649

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-649 A Allen TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-649 0 Allen TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-649 1 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-07-20   
972-649 2 Allen TX FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2005-01-17   
972-649 3 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-07-20   
972-649 4 Allen TX RCSNTXHVBMD  516C AT&T CORP. 552   2014-08-20   
972-649 5 Allen TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-649 6 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-02-15   
972-649 7 Allen TX ALLNTXSADS0  9533 SOUTHWESTERN BELL 552   2008-02-15   
972-649 8 Allen TX DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2010-09-06   
972-649 9 Allen TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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