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: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-557 A Seguin TX SGINTXMQRS0  9533 SOUTHWESTERN BELL 566      
830-557 0 Seguin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2007-09-01   
830-557 1 Seguin TX   9533 SOUTHWESTERN BELL 566      
830-557 2 Seguin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2008-01-10   
830-557 3 Seguin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2008-03-27   
830-557 4 Seguin TX   9533 SOUTHWESTERN BELL 566      
830-557 5 Seguin TX   9533 SOUTHWESTERN BELL 566      
830-557 6 Seguin TX   9533 SOUTHWESTERN BELL 566      
830-557 7 Seguin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2008-06-28   
830-557 8 Seguin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2008-10-27   
830-557 9 Seguin TX   5562 METROPCS, INC. 566   2013-01-04   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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