Local Calling Guide

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NPA: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

NXX: 674

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-674 A Austin TX AUSTTXWADS0  9533 SOUTHWESTERN BELL 558      
512-674 0 Austin TX   903C ONVOY, LLC - TX 558   2018-08-10   
512-674 1 Austin TX   5562 METROPCS, INC. 558   2007-12-08   
512-674 2 Austin TX   9533 SOUTHWESTERN BELL 558      
512-674 3 Austin TX   9533 SOUTHWESTERN BELL 558      
512-674 4 Austin TX   9533 SOUTHWESTERN BELL 558      
512-674 5 Austin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-06-23   
512-674 6 Austin TX   9533 SOUTHWESTERN BELL 558      
512-674 7 Austin TX   9533 SOUTHWESTERN BELL 558      
512-674 8 Austin TX   9533 SOUTHWESTERN BELL 558      
512-674 9 Austin TX   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2006-04-02   

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

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