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: 669

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-669 A Harlingen TX HRLNTXDUDS0  177F PEERLESS NETWORK OF TEXAS, LLC - TX 568      
956-669 0 Harlingen TX HRLNTXDUDS0  177F PEERLESS NETWORK OF TEXAS, LLC - TX 568   2022-02-27   
956-669 1 Harlingen TX HRLNTXDUDS0  177F PEERLESS NETWORK OF TEXAS, LLC - TX 568   2023-08-28   
956-669 9 Harlingen TX HRLNTXDUDS0  177F PEERLESS NETWORK OF TEXAS, LLC - TX 568   2022-02-27   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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