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: 553

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-553 A Harlingen TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      
956-553 0 Harlingen TX   903C ONVOY, LLC - TX 568   2025-02-02   
956-553 2 Harlingen TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2020-11-14   
956-553 3 Harlingen TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2020-11-14   
956-553 4 Harlingen TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2020-11-14   
956-553 5 Harlingen TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2020-07-07   
956-553 6 Harlingen TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2020-07-07   
956-553 7 Harlingen TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2020-07-07   
956-553 9 Harlingen TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2020-07-07   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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