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: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

NXX: 751

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-751 A Caddo Mills TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-751 0 Caddo Mills TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
903-751 1 Caddo Mills TX   903C ONVOY, LLC - TX 552   2016-04-01   
903-751 2 Caddo Mills TX   145J TERRA NOVA TELECOM INC. 552   2021-08-09   
903-751 3 Caddo Mills TX   903C ONVOY, LLC - TX 552   2012-06-09   
903-751 4 Caddo Mills TX   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552   2022-01-16   
903-751 5 Caddo Mills TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-09-28   
903-751 6 Caddo Mills TX   903C ONVOY, LLC - TX 552   2016-04-01   
903-751 7 Caddo Mills TX   903C ONVOY, LLC - TX 552   2008-11-21   
903-751 8 Caddo Mills TX   508J CENTURYLINK COMMUNICATIONS LLC 552   2014-05-14   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.