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: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-583 A Tulia TX TLIATXXAPS0  1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 544      
806-583 0 Tulia TX   903C ONVOY, LLC - TX 544   2019-04-22   
806-583 1 Tulia TX   903C ONVOY, LLC - TX 544   2019-04-22   
806-583 2 Tulia TX   903C ONVOY, LLC - TX 544   2021-01-30   
806-583 3 Tulia TX   903C ONVOY, LLC - TX 544   2018-10-13   
806-583 4 Tulia TX   903C ONVOY, LLC - TX 544   2021-01-30   
806-583 5 Tulia TX   073H TELNYX LLC 544   2021-04-09   
806-583 6 Tulia TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 544   2020-08-10   
806-583 7 Tulia TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 544   2022-12-23   
806-583 8 Tulia TX   939H COMMIO, LLC 544   2022-10-16   
806-583 9 Tulia TX   1181 VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 544   2018-01-27   

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

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