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: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-597 A Donna TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568      
956-597 0 Donna TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2020-12-19   
956-597 1 Donna TX   073H TELNYX LLC 568   2021-03-12   
956-597 2 Donna TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-07-30   
956-597 3 Donna TX   004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-07-30   
956-597 4 Donna TX   903C ONVOY, LLC - TX 568   2021-09-06   
956-597 5 Donna TX   5562 METROPCS, INC. 568   2022-01-25   
956-597 6 Donna TX   624H ONVOY SPECTRUM, LLC 568   2021-06-24   
956-597 7 Donna TX   903C ONVOY, LLC - TX 568   2021-09-06   
956-597 8 Donna TX   903C ONVOY, LLC - TX 568   2021-09-06   
956-597 9 Donna TX   624H ONVOY SPECTRUM, LLC 568   2021-11-25   

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

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