Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

NXX: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-457 A Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 0 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 1 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2017-08-25   
512-457 2 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 3 Austin TX AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2009-09-30   
512-457 4 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 5 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 6 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 7 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 8 Austin TX AUSTTXGRDS5  9533 SOUTHWESTERN BELL 558      
512-457 9 Austin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2013-08-09   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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