Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 806 [Rate centres in NPA 806] [Dial plan for NPA 806]

NXX: 591

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-591 A Hereford TX AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546      
806-591 0 Hereford TX   6529 T-MOBILE USA, INC. 546   2025-02-27   
806-591 1 Hereford TX   004F BANDWIDTH.COM CLEC, LLC - TX 546   2016-07-23   
806-591 2 Hereford TX   004F BANDWIDTH.COM CLEC, LLC - TX 546   2017-07-29   
806-591 3 Hereford TX   903C ONVOY, LLC - TX 546   2020-08-21   
806-591 4 Hereford TX   903C ONVOY, LLC - TX 546   2020-08-21   
806-591 5 Hereford TX   903C ONVOY, LLC - TX 546   2020-11-20   
806-591 6 Hereford TX   903C ONVOY, LLC - TX 546   2020-11-20   
806-591 7 Hereford TX   508J CENTURYLINK COMMUNICATIONS, LLC 546   2017-03-18   
806-591 8 Hereford TX   903C ONVOY, LLC - TX 546   2022-10-23   
806-591 9 Hereford TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546   2021-11-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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