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: 672

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-672 A Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-672 0 Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2022-03-20   
956-672 1 Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2022-03-20   
956-672 2 Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2022-03-20   
956-672 3 Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2022-03-20   
956-672 4 Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2022-03-20   
956-672 5 Mission TX HRLNTXDU2MD  939H COMMIO, LLC 568   2022-09-05   
956-672 6 Mission TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2022-03-21   
956-672 7 Mission TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2022-03-21   
956-672 8 Mission TX   515J IP HORIZON LLC 568   2022-03-27   
956-672 9 Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2022-03-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.