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]

Region: TX

OCN: 7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX

1 2 3 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
713-231 2 Houston TX HSTOTX42DS2  560   2003-12-28   
713-234 3 Sugar Land TX HSTOTX42DS2  560   2011-07-02   
713-264 3 Houston TX HSTOTX42DS2  560   2005-07-22   
713-264 4 Houston TX HSTOTX42DS2  560   2005-07-22   
713-321 1 Houston TX HSTOTX42DS2  560   2013-08-11   
713-328 A Houston TX HSTOTX42DS2  560      
713-328 0 Houston TX HSTOTX42DS2  560      
713-328 1 Houston TX HSTOTX42DS2  560      
713-328 2 Houston TX HSTOTX42DS2  560      
713-328 3 Houston TX HSTOTX42DS2  560      
713-328 4 Houston TX HSTOTX42DS2  560      
713-328 5 Houston TX HSTOTX42DS2  560      
713-328 6 Houston TX HSTOTX42DS2  560      
713-328 7 Houston TX HSTOTX42DS2  560      
713-328 8 Houston TX HSTOTX42DS2  560      
713-335 A Houston TX HSTOTX42DS2  560      
713-338 3 Houston TX HSTOTX42DS2  560   2010-08-11   
713-341 A Houston TX HSTOTX42DS2  560      
713-351 A Houston TX HSTOTX42DS2  560      
713-351 0 Houston TX HSTOTX42DS2  560      
713-351 1 Houston TX HSTOTX42DS2  560      
713-351 2 Houston TX HSTOTX42DS2  560      
713-351 3 Houston TX HSTOTX42DS2  560      
713-351 4 Houston TX HSTOTX42DS2  560      
713-351 5 Houston TX HSTOTX42DS2  560      
713-351 6 Houston TX HSTOTX42DS2  560      
713-351 7 Houston TX HSTOTX42DS2  560      
713-351 8 Houston TX HSTOTX42DS2  560      
713-358 A Houston TX HSTOTX42DS2  560      
713-362 A Houston TX HSTOTX42DS2  560      
713-366 7 Houston TX HSTOTX42DS2  560   2006-06-19   
713-375 A Houston TX HSTOTX42DS2  560      
713-380 A Houston TX HSTOTX42DS2  560      
713-380 3 Houston TX HSTOTX42DS2  560   2013-10-03   
713-380 4 Houston TX HSTOTX42DS2  560   2013-10-03   
713-389 1 Spring TX HSTOTX42DS2  560   2008-06-16   
713-395 A Houston TX HSTOTX42DS2  560      
713-396 A Houston TX HSTOTX42DS2  560      
713-396 4 Houston TX HSTOTX42DS2  560   2011-01-20   
713-441 A Houston TX HSTOTX42DS2  560      
713-452 A Houston TX HSTOTX42DS2  560      
713-452 1 Houston TX HSTOTX42DS2  560   2008-06-13   
713-452 2 Houston TX HSTOTX42DS2  560   2008-06-13   
713-452 3 Houston TX HSTOTX42DS2  560   2008-06-13   
713-452 4 Houston TX HSTOTX42DS2  560   2008-06-13   
713-452 5 Houston TX HSTOTX42DS2  560   2008-06-13   
713-452 6 Houston TX HSTOTX42DS2  560   2008-06-13   
713-452 7 Houston TX HSTOTX42DS2  560   2008-06-13   
713-452 8 Houston TX HSTOTX42DS2  560   2008-06-13   
713-457 A Houston TX HSTOTX42DS2  560      

1 2 3 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.