Local Calling Guide

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NPA: 830 [Rate centres in NPA 830] [Dial plan for NPA 830]

NXX: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-538 A Castroville TX CSVLTXCTDS0  9533 SOUTHWESTERN BELL 566      
830-538 0 Castroville TX   903C ONVOY, LLC - TX 566   2016-08-06   
830-538 1 Castroville TX   9533 SOUTHWESTERN BELL 566      
830-538 2 Castroville TX   9533 SOUTHWESTERN BELL 566      
830-538 3 Castroville TX   9533 SOUTHWESTERN BELL 566      
830-538 4 Castroville TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2010-01-13   
830-538 5 Castroville TX   516C AT&T CORP. 566   2011-03-25   
830-538 6 Castroville TX   9533 SOUTHWESTERN BELL 566      
830-538 7 Castroville TX   508J CENTURYLINK COMMUNICATIONS, LLC 566   2016-11-23   
830-538 8 Castroville TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-07-27   
830-538 9 Castroville TX   9533 SOUTHWESTERN BELL 566      

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

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