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: 710

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-710 A Harlingen TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568      
956-710 2 Harlingen TX   903C ONVOY, LLC - TX 568   2020-08-24   
956-710 3 Harlingen TX   903C ONVOY, LLC - TX 568   2020-08-24   
956-710 4 Harlingen TX   903C ONVOY, LLC - TX 568   2020-08-24   
956-710 5 Harlingen TX   903C ONVOY, LLC - TX 568   2020-08-24   
956-710 6 Harlingen TX   903C ONVOY, LLC - TX 568   2020-08-24   
956-710 7 Harlingen TX   624H ONVOY SPECTRUM, LLC 568   2020-01-15   
956-710 8 Harlingen TX   624H ONVOY SPECTRUM, LLC 568   2021-05-23   

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

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