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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-999 5 Catarina TX SNANTXCA58Z  516C AT&T CORP. 566   2011-11-25   
830-999 6 Catarina TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-08-16   
830-999 7 Catarina TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2020-04-13   
830-999 9 Catarina TX SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566   2014-05-02   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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