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: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-837 A Pharr TX HRLNTXHGXUX  516J TON80 COMMUNICATIONS, LLC 568      
956-837 0 Pharr TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2023-02-19   
956-837 1 Pharr TX   903C ONVOY, LLC - TX 568   2023-01-04   
956-837 2 Pharr TX   903C ONVOY, LLC - TX 568   2023-01-04   
956-837 3 Pharr TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2023-02-19   
956-837 4 Pharr TX   516J TON80 COMMUNICATIONS, LLC 568   2022-06-05   
956-837 5 Pharr TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2023-02-19   
956-837 6 Pharr TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2022-11-20   
956-837 7 Pharr TX   624H ONVOY SPECTRUM, LLC 568   2025-05-16   
956-837 8 Pharr TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2022-11-20   
956-837 9 Pharr TX   939H COMMIO, LLC 568   2022-09-05   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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