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: 730

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-730 A Houston TX HSTNTXCLDS0  9533 SOUTHWESTERN BELL 560      
713-730 0 Houston TX   9533 SOUTHWESTERN BELL 560      
713-730 1 Houston TX   9533 SOUTHWESTERN BELL 560      
713-730 2 Houston TX   903C ONVOY, LLC - TX 560   2015-08-13   
713-730 3 Houston TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2012-08-24   
713-730 4 Houston TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2012-08-24   
713-730 5 Houston TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2012-08-24   
713-730 6 Houston TX   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2012-09-13   
713-730 7 Houston TX   829J PAETEC ITEL, LLC 560   2013-08-05   
713-730 8 Houston TX   6701 AERIAL COMMUNICATIONS, INC. 560   2012-09-06   
713-730 9 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2012-09-16   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.