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.

Switch: HSTOTX42DS2

<< 1 2 3 4 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
346-238 7 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-06-10   
346-238 8 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-06-10   
346-238 9 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-06-10   
346-247 2 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2014-07-12   
346-247 3 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2014-07-12   
346-292 A Baytown TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
346-292 1 Baytown TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 2 Baytown TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 3 Baytown TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 4 Baytown TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 7 Baytown TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-347 4 Alvin TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-04-26   
346-570 A Houston Suburban TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
346-874 A Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
346-874 2 Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-12-10   
346-874 3 Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-12-10   
346-874 4 Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-12-10   
346-874 5 Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-12-10   
346-874 6 Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2016-12-10   
346-901 A Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
346-901 2 Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2015-06-20   
409-229 2 Texas City-La Marque TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2011-02-07   
409-978 4 Hitchcock-Santa Fe TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2009-08-24   
713-231 2 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2003-12-28   
713-234 3 Sugar Land TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2011-07-02   
713-264 3 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2005-07-22   
713-264 4 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2005-07-22   
713-321 1 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2013-08-11   
713-338 3 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2010-08-11   
713-362 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-375 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-380 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-380 3 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2013-10-03   
713-380 4 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2013-10-03   
713-395 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-396 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-396 4 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2011-01-20   
713-441 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-457 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-486 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-486 0 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 1 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 2 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 3 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 4 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 5 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 6 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 7 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 8 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   
713-486 9 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-09-28   

<< 1 2 3 4 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.