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: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-200 A Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-200 0 Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-01-17   
972-200 1 Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-07-01   
972-200 2 Seagoville TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-09-15   
972-200 3 Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-07-01   
972-200 4 Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-01-13   
972-200 5 Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2003-02-22   
972-200 7 Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-10-29   
972-200 8 Seagoville TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2003-10-25   
972-200 9 Seagoville TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-08-26   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.