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: 841

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-841 A Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2026-02-26   
956-841 5 Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2026-02-26   
956-841 6 Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2026-02-26   
956-841 7 Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2026-02-26   
956-841 8 Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2026-02-26   
956-841 9 Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2026-02-26   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.