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: 775

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-775 A Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 0 Midlothian TX DLLTTX01CMD  5562 METROPCS, INC. 552      
972-775 1 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 2 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 3 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 4 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 5 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 6 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 7 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 8 Midlothian TX MDLTTXGRRS0  9533 SOUTHWESTERN BELL 552      
972-775 9 Midlothian TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.