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
713-321 A Houston TX HSTNTXCLDS0  9533 SOUTHWESTERN BELL 560      
713-321 0 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-05-04   
713-321 1 Houston TX   7074 TIME WARNER COMMUNICATIONS OF HOUSTON, LP 560   2013-08-11   
713-321 2 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2014-05-12   
713-321 3 Houston TX   9533 SOUTHWESTERN BELL 560      
713-321 4 Houston TX   9533 SOUTHWESTERN BELL 560      
713-321 5 Houston TX   9533 SOUTHWESTERN BELL 560      
713-321 6 Houston TX   9533 SOUTHWESTERN BELL 560      
713-321 7 Houston TX   9533 SOUTHWESTERN BELL 560      
713-321 8 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-05-04   
713-321 9 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-05-04   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.