Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-813 4 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-813 5 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-813 6 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-813 7 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-813 8 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-821 4 Irving TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2004-12-17   
972-821 5 Irving TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2004-12-17   
972-822 2 Irving EMS TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-06-06   
972-829 2 Lewisville TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2006-04-10   
972-861 3 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 4 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 6 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 7 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 8 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-876 3 Ennis EMS TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2009-11-09   
972-885 4 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2012-12-31   
972-892 A Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-908 A Allen TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-908 5 Allen TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2013-12-12   
972-925 A Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 1 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 2 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 3 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 4 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 5 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 6 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 7 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-925 8 Dallas TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 6 Irving TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-03-25   
972-961 A Rockwall TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-961 9 Rockwall TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-963 A Frisco TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-963 1 Frisco TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2003-02-21   
972-963 2 Frisco TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-963 3 Frisco TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2003-06-24   
972-963 5 Frisco TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-963 6 Frisco TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2003-02-21   
972-963 9 Frisco TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-984 A McKinney TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-984 3 McKinney TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-984 4 McKinney TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-984 5 McKinney TX 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

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Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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