Local Calling Guide

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

NXX: 778

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-778 A Liberty Hill TX LBHLTXLHRS0  9533 SOUTHWESTERN BELL 558      
512-778 0 Liberty Hill TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-03-28   
512-778 1 Liberty Hill TX LBHLTXLHRS0  9533 SOUTHWESTERN BELL 558      
512-778 2 Liberty Hill TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2013-08-26   
512-778 3 Liberty Hill TX AUSTTX92SMD  7551 AUSTIN BESTLINE COMPANY 558   2014-05-21   
512-778 4 Liberty Hill TX AUSTTXGR25Z  516C AT&T CORP. 558   2011-06-07   
512-778 5 Liberty Hill TX LBHLTXLHRS0  9533 SOUTHWESTERN BELL 558      
512-778 6 Liberty Hill TX LBHLTXLHRS0  9533 SOUTHWESTERN BELL 558      
512-778 7 Liberty Hill TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2011-09-23   
512-778 8 Liberty Hill TX AUSTTXGRX3Y  073H TELNYX LLC 558   2018-09-17   
512-778 9 Liberty Hill TX LBHLTXLHRS0  9533 SOUTHWESTERN BELL 558      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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