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: 490

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-490 A Poth TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-490 0 Poth TX   903C ONVOY, LLC - TX 566   2016-05-19   
830-490 1 Poth TX   903C ONVOY, LLC - TX 566   2016-05-19   
830-490 2 Poth TX   004F BANDWIDTH.COM CLEC, LLC - TX 566   2018-06-10   
830-490 3 Poth TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2019-02-10   
830-490 4 Poth TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2024-10-06   
830-490 5 Poth TX   624H ONVOY SPECTRUM, LLC 566   2021-06-24   
830-490 6 Poth TX   624H ONVOY SPECTRUM, LLC 566   2021-12-04   
830-490 7 Poth TX   903C ONVOY, LLC - TX 566   2021-01-29   
830-490 8 Poth TX   903C ONVOY, LLC - TX 566   2021-01-29   
830-490 9 Poth TX   793K TWC IP ENABLED SERVICES, LLC 566   2019-08-13   

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

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