Local Calling Guide

Area code/prefix search

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

NXX: 218

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-218 A Laredo TX SNANTX91DS5  4866 SMARTCOM TELEPHONE, LLC 566      

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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