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: 833

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-833 A Ferris TX DLLATX37DMD  8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 552      
972-833 0 Ferris TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552      
972-833 1 Ferris TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
972-833 2 Ferris TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-833 3 Ferris TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-833 4 Ferris TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
972-833 5 Ferris TX DLLATX37DMD  8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 552      
972-833 6 Ferris TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
972-833 7 Ferris TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
972-833 8 Ferris TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
972-833 9 Ferris TX   515J IP HORIZON LLC 552      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.