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.

Allen EACS, TX

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
469-675 4 DLLSTXRIXYY  318C CEBRIDGE TELECOM TX , L.P. - TX 552   2014-06-13   
469-675 5 DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2005-04-04   
469-675 6 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2006-08-19   
469-675 7 DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
469-675 8 DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
469-675 9 DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-332 A DLLSTXRIXPZ  7421 AT&T - LOCAL 552      
972-332 0 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-12-19   
972-332 1 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-10-21   
972-332 2 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2007-02-23   
972-332 3 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2007-02-23   
972-332 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-10-14   
972-332 5 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-05-11   
972-332 6 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2011-07-26   
972-332 7 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2011-07-26   
972-332 8 RCSNTXHVBMD  516C AT&T CORP. 552   2010-03-18   
972-332 9 DLLSTXRIXPZ  7421 AT&T - LOCAL 552      
972-359 A ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 0 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 1 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 2 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 3 DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2007-07-28   
972-359 4   624H ONVOY SPECTRUM, LLC 552   2024-01-15   
972-359 5 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 6 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 7 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 8 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-359 9 ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-390 A ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-396 A ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-521 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-521 0 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-521 1 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-04-26   
972-521 2 IRNGTXXBPSB  0701 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552   2014-04-21   
972-521 3 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-10-11   
972-521 4 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2013-12-09   
972-521 5 DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-521 6 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2013-12-09   
972-521 7 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2008-08-02   
972-521 8 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-521 9 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-678 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-727 A ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-747 A ALLNTXSADS0  9533 SOUTHWESTERN BELL 552      
972-912 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      

<< 1 2

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.