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: 516C AT&T CORP.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
713-393 7 Houston TX HSTNTX01X7X  560   2009-12-29   
713-474 5 Houston Suburban TX HSTNTX01X7X  560   2011-06-17   
713-485 0 Houston TX HSTNTX01X7X  560   2009-11-13   
713-485 4 Houston TX HSTNTX01X7X  560   2009-04-24   
713-485 5 Houston TX HSTNTX01X7X  560   2009-04-30   
713-485 6 Houston TX HSTNTX01X7X  560   2009-04-30   
713-491 3 Houston TX HSTNTX01X7X  560   2016-09-12   
713-497 5 Houston TX HSTNTX01X7X  560   2013-07-29   
713-505 A Houston TX HSTNTX01X7X  560      
713-505 1 Houston TX HSTNTX01X7X  560      
713-586 0 Houston TX HSTNTX01X7X  560   2016-09-12   
713-587 0 Houston TX HSTNTX01X7X  560   2016-09-12   
713-926 0 Houston TX HSTNTX01X7X  560   2016-09-12   
713-957 9 Houston TX HSTNTX01X7X  560   2016-09-12   
713-993 6 Houston TX HSTNTX01X7X  560   2009-08-23   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.