Local Calling Guide

Area code/prefix search

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

NXX: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-639 A Brownsville TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      

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

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