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.

NPA: 713 [Rate centres in NPA 713] [Dial plan for NPA 713]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-438 A Houston TX HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-438 0 Houston TX   9533 SOUTHWESTERN BELL 560      
713-438 1 Houston TX   9533 SOUTHWESTERN BELL 560      
713-438 2 Houston TX   6664 SPRINT SPECTRUM L.P. 560   2005-10-23   
713-438 3 Houston TX   6664 SPRINT SPECTRUM L.P. 560   2005-10-23   
713-438 4 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-04-22   
713-438 5 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-04-22   
713-438 6 Houston TX   9533 SOUTHWESTERN BELL 560      
713-438 7 Houston TX   6664 SPRINT SPECTRUM L.P. 560   2005-10-23   
713-438 8 Houston TX   6664 SPRINT SPECTRUM L.P. 560   2005-10-23   
713-438 9 Houston TX   9533 SOUTHWESTERN BELL 560      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.