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
512-643 A AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      
512-643 0 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 1 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 2 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 3 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 4 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 5 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 6 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 7 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 8 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-643 9 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2014-08-31   
512-645 A AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-645 0 AUSTTXGR25Z  516C AT&T CORP. 558   2014-10-28   
512-645 1 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2014-10-28   
512-645 2 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2014-10-28   
512-645 3 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2014-10-28   
512-645 4 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-11-01   
512-645 5 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-10-28   
512-645 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-10-28   
512-645 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2014-10-28   
512-645 8 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2015-06-23   
512-645 9 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2015-06-23   
512-646 A AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-646 0 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
512-646 1 AUSUTXYYPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 558      
512-646 2 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
512-646 3 AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-646 4 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
512-646 5 AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-646 6 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
512-646 7 AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-646 8 AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2016-10-20   
512-646 9 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2016-09-30   
512-647 A AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-647 0 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2016-09-30   
512-647 1 AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2017-08-04   
512-647 2 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
512-647 3 AUSTTXGR25Z  516C AT&T CORP. 558   2016-09-12   
512-647 4 AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-647 5 AUSTTXGR25Z  516C AT&T CORP. 558   2016-09-12   
512-647 6 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      
512-647 7 AUSTTXUHAMD  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 558      
512-647 8 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2017-08-04   
512-647 9 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2017-08-04   
512-649 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-649 0 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 1 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 2 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 3 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 4 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 5 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2013-09-26   
512-649 7 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 8 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-649 9 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-06-17   
512-650 A AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558      
512-650 0 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2010-02-17   
512-650 1 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2008-02-07   
512-650 2 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2008-02-07   
512-650 3 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2008-03-15   
512-650 4 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2008-03-15   
512-650 5 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2010-02-23   
512-650 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-03-18   
512-650 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2010-03-18   
512-650 8 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2010-03-21   
512-650 9 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2008-01-19   
512-651 A AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 A AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 0 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 1 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 2 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 3 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 4 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 5 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 6 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2007-10-24   
512-652 7 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-652 8 AUSWTXGXBMD  5562 METROPCS, INC. 558   2003-10-01   
512-652 9 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
512-653 A AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 0 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 1 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 2 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 3 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 4 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 5 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 6 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 7 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 8 AUSWTXGXBMD  5562 METROPCS, INC. 558      
512-653 9 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558      
512-654 A AUSTTXHODS0  9533 SOUTHWESTERN BELL 558      
512-654 0 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 1 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 2 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 3 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 4 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 5 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 6 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 7 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 8 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   
512-654 9 AUSTTXHODS0  9533 SOUTHWESTERN BELL 558   2012-05-11   

<< 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: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.