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: 445

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-445 A Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 0 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 1 Mission TX HRLNTXATTMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568      
956-445 2 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 3 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 4 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 5 Mission TX HRLNTXHGFMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 568      
956-445 6 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 7 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 8 Mission TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-445 9 Mission TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.