Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 830 [Rate centres in NPA 830] [Dial plan for NPA 830]

NXX: 554

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-554 A Blanco TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-554 0 Blanco TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-554 1 Blanco TX   939H COMMIO, LLC 566   2023-08-27   
830-554 2 Blanco TX   939H COMMIO, LLC 566   2024-01-18   
830-554 3 Blanco TX   939H COMMIO, LLC 566   2024-01-18   
830-554 4 Blanco TX   903C ONVOY, LLC - TX 566   2021-09-03   
830-554 6 Blanco TX   624H ONVOY SPECTRUM, LLC 566   2024-03-18   
830-554 7 Blanco TX   508J CENTURYLINK COMMUNICATIONS, LLC 566   2018-01-11   
830-554 8 Blanco TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2018-07-14   
830-554 9 Blanco TX   004F BANDWIDTH.COM CLEC, LLC - TX 566   2009-02-21   

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

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