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.

Austin, TX

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
512-803 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-803 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-07-06   
512-804 A AUSTTXHIDS0  9533 SOUTHWESTERN BELL 558      
512-804 0   9533 SOUTHWESTERN BELL 558      
512-804 1   9533 SOUTHWESTERN BELL 558      
512-804 2   9533 SOUTHWESTERN BELL 558      
512-804 3   9533 SOUTHWESTERN BELL 558      
512-804 4   9533 SOUTHWESTERN BELL 558      
512-804 5   9533 SOUTHWESTERN BELL 558      
512-804 6   6529 T-MOBILE USA, INC. 558   2006-07-10   
512-804 7   9533 SOUTHWESTERN BELL 558      
512-804 8   6529 T-MOBILE USA, INC. 558   2006-07-10   
512-804 9   6529 T-MOBILE USA, INC. 558   2006-07-10   
512-806 A AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-806 0   004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-12-19   
512-806 1   004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-12-19   
512-806 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2014-12-18   
512-806 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-08-05   
512-806 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-08-05   
512-806 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-08-05   
512-806 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-08-05   
512-806 7   903C ONVOY, LLC - TX 558   2014-12-19   
512-806 8   6529 T-MOBILE USA, INC. 558   2015-08-19   
512-806 9   6529 T-MOBILE USA, INC. 558   2015-08-19   
512-807 A AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
512-807 0   903C ONVOY, LLC - TX 558   2008-02-28   
512-807 1   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-05-25   
512-807 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-05-25   
512-807 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-05-25   
512-807 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-05-25   
512-807 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558   2008-05-25   
512-807 6   903C ONVOY, LLC - TX 558   2008-05-26   
512-807 7   903C ONVOY, LLC - TX 558   2008-06-02   
512-807 8   903C ONVOY, LLC - TX 558   2008-06-13   
512-807 9   903C ONVOY, LLC - TX 558   2008-06-13   
512-808 A AUSWTXOO2MD  829J PAETEC ITEL, LLC 558   2025-01-23   
512-808 0   004F BANDWIDTH.COM CLEC, LLC - TX 558   2012-08-16   
512-808 1   829J PAETEC ITEL, LLC 558   2012-04-23   
512-808 2   829J PAETEC ITEL, LLC 558   2012-04-23   
512-808 3   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2012-05-25   
512-808 4   829J PAETEC ITEL, LLC 558   2012-04-12   
512-808 5   829J PAETEC ITEL, LLC 558   2012-04-12   
512-808 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2012-04-20   
512-808 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2012-04-20   
512-808 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2012-05-15   
512-808 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2012-05-15   
512-809 A AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-809 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-809 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-809 2   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2004-08-22   
512-809 3   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2004-10-02   
512-809 4   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2004-10-14   
512-809 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2005-08-08   
512-809 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2005-08-08   
512-809 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2005-02-12   
512-809 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-809 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-810 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-810 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2008-09-07   
512-810 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2008-09-07   
512-810 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2008-09-07   
512-810 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-03-29   
512-810 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-04-10   
512-810 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-10-17   
512-810 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-10-17   
512-810 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2009-10-17   
512-810 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2008-06-02   
512-810 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2008-06-02   
512-813 A AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-813 0   004F BANDWIDTH.COM CLEC, LLC - TX 558   2012-09-16   
512-813 1   004F BANDWIDTH.COM CLEC, LLC - TX 558   2012-09-16   
512-813 2   7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2012-08-12   
512-813 3   7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2012-07-29   
512-813 4   7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2012-07-29   
512-813 5   7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2012-07-31   
512-813 6   7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2012-07-31   
512-813 7   829J PAETEC ITEL, LLC 558   2013-05-01   
512-813 8   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2013-06-03   
512-813 9   004F BANDWIDTH.COM CLEC, LLC - TX 558   2012-09-16   
512-814 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-814 0   793K TWC IP ENABLED SERVICES, LLC 558   2008-11-28   
512-814 1   793K TWC IP ENABLED SERVICES, LLC 558   2008-11-28   
512-814 2   793K TWC IP ENABLED SERVICES, LLC 558   2008-11-28   
512-814 3   793K TWC IP ENABLED SERVICES, LLC 558   2008-11-28   
512-814 4   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2010-01-04   
512-814 5   004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-01-16   
512-814 6   004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-01-16   
512-814 7   004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-01-16   
512-814 8   004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-01-16   
512-814 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2008-03-22   
512-815 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-815 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2011-09-19   
512-815 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2012-05-13   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 >>

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.