Local Calling Guide

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

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-255 A Carrizo Springs TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-255 0 Carrizo Springs TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2004-04-03   
830-255 1 Carrizo Springs TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2005-03-12   
830-255 2 Carrizo Springs TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2013-07-24   
830-255 3 Carrizo Springs TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2006-07-13   
830-255 4 Carrizo Springs TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-255 5 Carrizo Springs TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2010-11-05   
830-255 6 Carrizo Springs TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2011-04-17   
830-255 7 Carrizo Springs TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2009-02-21   
830-255 8 Carrizo Springs TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2010-07-23   
830-255 9 Carrizo Springs TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2008-04-21   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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