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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
512-998 9 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-202 A AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-202 0 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-202 1 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-202 2 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-202 3 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-202 4   793K TWC IP ENABLED SERVICES, LLC 558      
737-202 5 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-202 6 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-202 7 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-202 8 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-202 9 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-203 A AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
737-203 0 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-203 1 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-203 2 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-203 3 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
737-203 4 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-203 5 AUSTTXGR25Z  516C AT&T CORP. 558      
737-203 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
737-203 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
737-203 8   793K TWC IP ENABLED SERVICES, LLC 558      
737-203 9   793K TWC IP ENABLED SERVICES, LLC 558      
737-204 A AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 0 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 1 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 2 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 3 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 4 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 5 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 6 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 7 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 8 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-204 9 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-205 A AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-205 0 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-205 1 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-205 2 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-205 3 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-205 4 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-205 5   793K TWC IP ENABLED SERVICES, LLC 558      
737-205 6 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-205 7   793K TWC IP ENABLED SERVICES, LLC 558      
737-205 8   793K TWC IP ENABLED SERVICES, LLC 558      
737-205 9 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-207 A AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-207 0 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
737-207 1 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
737-207 2 AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558      
737-207 3 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-207 4 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-207 5 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-207 6 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-207 7 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-207 8 AUSTTXGRDS7  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-207 9 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-208 A AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
737-208 0 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-208 1 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-208 2 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-208 3 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
737-208 4 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
737-208 5 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
737-208 6 AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558      
737-208 7 AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-208 8 AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-208 9 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
737-209 A   793K TWC IP ENABLED SERVICES, LLC 558   2025-01-29   
737-209 0   793K TWC IP ENABLED SERVICES, LLC 558      
737-209 1   793K TWC IP ENABLED SERVICES, LLC 558      
737-209 2   793K TWC IP ENABLED SERVICES, LLC 558      
737-209 3 AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558      
737-209 4   829J PAETEC ITEL, LLC 558      
737-209 5   829J PAETEC ITEL, LLC 558      
737-209 6 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-209 7 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-209 8 AUSTTXGR25Z  516C AT&T CORP. 558      
737-209 9 AUSTTXGR25Z  516C AT&T CORP. 558      
737-210 A AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-210 0 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
737-210 1 AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      
737-210 2 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
737-210 3 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-210 4 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-210 5 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-210 6 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
737-210 7 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-210 8 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-210 9 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
737-212 A   793K TWC IP ENABLED SERVICES, LLC 558   2025-01-29   
737-212 0   793K TWC IP ENABLED SERVICES, LLC 558      
737-212 1   793K TWC IP ENABLED SERVICES, LLC 558      
737-212 2 AUSWTXGX0MD  5562 METROPCS, INC. 558      
737-212 3 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
737-212 4 AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
737-212 5   793K TWC IP ENABLED SERVICES, LLC 558      
737-212 6   793K TWC IP ENABLED SERVICES, LLC 558      
737-212 7   793K TWC IP ENABLED SERVICES, LLC 558      
737-212 8 AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-212 9 AUSYTXFC1MD  004F BANDWIDTH.COM CLEC, LLC - TX 558      

<< 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 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.