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: HSTOTX42DS0

<< 1 2 3 4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-482 4 Houston Suburban TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-482 5 Houston Suburban TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-482 6 Houston Suburban TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-485 1 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2009-11-09   
713-485 2 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2009-04-11   
713-485 3 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2009-04-11   
713-485 7 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2009-06-22   
713-485 8 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2009-06-22   
713-579 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-580 A Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
713-634 2 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
713-634 3 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
713-634 4 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
713-634 5 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
713-634 6 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
713-808 6 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
713-808 7 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
713-808 8 Houston TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2007-11-08   
832-323 A Channelview TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-323 0 Channelview TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-323 5 Channelview TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-334 A Cypress EMS TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-334 0 Cypress EMS TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-340 A Dickinson TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-340 2 Dickinson TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2008-02-04   
832-449 4 Richmond-Rosenberg EMS TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2009-12-11   
832-539 A Stafford TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-539 0 Stafford TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-539 5 Stafford TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-632 A League City TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-632 0 League City TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-632 5 League City TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-698 A Tomball EMS TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-698 0 Tomball EMS TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-698 5 Tomball EMS TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-764 A Spring TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-764 5 Spring TX 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      

<< 1 2 3 4

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.