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: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 591

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-591 A Mission TX HRLNTXHGYMD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568      
956-591 0 Mission TX HRLNTXHGYMD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2020-11-06   
956-591 1 Mission TX HRLNTXKX7MD  5562 METROPCS, INC. 568   2020-11-07   
956-591 2 Mission TX HRLNTXKX7MD  5562 METROPCS, INC. 568   2021-01-08   
956-591 3 Mission TX HRLNTXKX7MD  5562 METROPCS, INC. 568   2021-01-08   
956-591 4 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568   2022-02-13   
956-591 5 Mission TX HRLNTXKX7MD  5562 METROPCS, INC. 568   2020-11-07   
956-591 6 Mission TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2020-12-03   
956-591 7 Mission TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2020-12-03   
956-591 8 Mission TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2020-12-03   
956-591 9 Mission TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2020-12-03   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.