Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 512

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-512 A Los Fresnos TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2026-07-25   
956-512 0 Los Fresnos TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2026-07-25   
956-512 1 Los Fresnos TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2026-07-25   
956-512 3 Los Fresnos TX   5562 METROPCS, INC. 568   2026-07-27   

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

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