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: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 968

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-968 A Dallas TX DLLSTXRNDS1  9533 SOUTHWESTERN BELL 552      
972-968 0 Dallas TX DLLSTXRNDS1  9533 SOUTHWESTERN BELL 552      
972-968 1 Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-968 2 Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-968 3 Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-968 4 Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-968 5 Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-968 6 Dallas TX DLLSTXFBDS0  9533 SOUTHWESTERN BELL 552      
972-968 7 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-02-11   
972-968 8 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-02-11   
972-968 9 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-02-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.