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: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-566 A Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 0 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-01-05   
713-566 1 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-01-05   
713-566 2 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 3 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 4 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 5 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 6 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 7 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 8 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
713-566 9 Houston TX HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.