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
512-982 6 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2015-05-09   
512-982 7 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2013-12-16   
512-982 8 AUSWTXGXBMD  5562 METROPCS, INC. 558   2014-03-06   
512-982 9 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2013-12-15   
512-983 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-983 0 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-03-24   
512-983 1 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-03-24   
512-983 2 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-03-24   
512-983 3 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-03-24   
512-983 4 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-03-24   
512-983 5 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-06-23   
512-983 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-06-23   
512-983 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-06-23   
512-983 8 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-06-23   
512-983 9 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-09-19   
512-984 A AUSTTXCFRS0  9533 SOUTHWESTERN BELL 558      
512-987 A AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-987 0 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2013-09-26   
512-987 1 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-08-20   
512-987 2 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-04-23   
512-987 3 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-04-23   
512-987 4 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-05-07   
512-987 5 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-05-07   
512-987 6 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-05-07   
512-987 7 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-05-07   
512-987 8 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-08-12   
512-987 9 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-08-12   
512-989 A AUSTTXPFDS0  9533 SOUTHWESTERN BELL 558      
512-990 A AUSTTXPFDS0  9533 SOUTHWESTERN BELL 558      
512-992 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-992 0 AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-06-08   
512-992 1 AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-06-08   
512-992 2 AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-06-08   
512-992 3 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2007-05-28   
512-992 4 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2007-05-28   
512-992 5 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2007-05-28   
512-992 6 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2007-05-28   
512-992 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-09-29   
512-992 8 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-09-29   
512-992 9 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-09-29   
512-993 A AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-993 0 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-05-22   
512-993 1 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2014-06-25   
512-993 2 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2014-06-03   
512-993 3 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2013-09-23   
512-993 4 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2013-01-18   
512-993 5 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2013-01-18   
512-993 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2013-01-18   
512-993 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2013-01-18   
512-993 8 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-01-11   
512-993 9 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2013-01-11   
512-994 A AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-994 0 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2011-04-28   
512-994 1 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2011-04-28   
512-994 2 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2011-04-23   
512-994 3 AUSWTXOO2MD  829J PAETEC ITEL, LLC 558   2011-04-08   
512-994 4 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2011-04-28   
512-994 5 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2011-04-15   
512-994 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2011-04-15   
512-994 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2011-04-15   
512-994 8 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2011-04-15   
512-994 9 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2011-03-18   
512-996 A AUSTTXJODS0  9533 SOUTHWESTERN BELL 558      
512-996 0 AUSTTXJODS0  9533 SOUTHWESTERN BELL 558      
512-996 1 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-08-24   
512-996 2 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-08-24   
512-996 3 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-08-24   
512-996 4 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-08-07   
512-996 5 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-08-07   
512-996 6 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2023-08-24   
512-996 7 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2023-08-07   
512-996 8 AUSTTXJODS0  9533 SOUTHWESTERN BELL 558      
512-996 9 AUSTTXJODS0  9533 SOUTHWESTERN BELL 558      
512-997 A AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 0 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 1 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 2 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 3 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 4 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 5 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2007-12-08   
512-997 6 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 7 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-997 8 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2006-08-24   
512-997 9 AUSTTXTEDS0  9533 SOUTHWESTERN BELL 558      
512-998 A AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558      
512-998 0 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 1 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 2 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 3 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 4 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 5 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 6 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 7 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 8 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
512-998 9 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2013-01-05   
737-202 A AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-202 0 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2015-10-18   
737-202 1 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2015-10-18   
737-202 2 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2015-10-17   
737-202 3 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2015-10-17   

<< 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: VoIP.ms

Like this site? We accept donations via PayPal.