Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: AUSWTXSZDS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-309 2 Taylor TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2014-02-27   
512-646 A Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-646 3 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-646 5 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-646 7 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-647 A Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-647 4 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-647 7 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-713 A Georgetown TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-713 2 Georgetown TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2015-05-04   
512-806 A Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-806 2 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2014-12-18   
512-852 7 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558   2006-12-21   
512-879 A Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-879 0 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-879 2 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      
512-879 5 Austin TX 7516 LEVEL 3 TELECOM OF TEXAS, LLC 558      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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