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: 427

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
713-427 A Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 0 Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 1 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
713-427 2 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
713-427 3 Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 4 Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 5 Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 6 Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 7 Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 8 Houston TX HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
713-427 9 Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.