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: 514

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-514 A Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-514 0 Irving EMS TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-514 1 Irving EMS TX IRNGTXXBXQX  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552      
972-514 2 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-514 3 Irving EMS TX   903C ONVOY, LLC - TX 552      
972-514 4 Irving EMS TX   6529 T-MOBILE USA, INC. 552      
972-514 5 Irving EMS TX   6529 T-MOBILE USA, INC. 552      
972-514 6 Irving EMS TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
972-514 7 Irving EMS TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
972-514 8 Irving EMS TX IRNGTX276MD  327E YMAX COMMUNICATIONS CORP. - TX 552      
972-514 9 Irving EMS TX FRBRTXBLGT9  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.