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.

Kyle, TX

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
737-388 0 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2024-06-01   
737-388 1 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2024-06-01   
737-388 2   903C ONVOY, LLC - TX 558   2025-02-02   
737-388 3 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2024-10-26   
737-388 4 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2024-10-26   
737-388 5 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2024-08-28   
737-388 6 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2024-08-28   
737-388 7 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2024-10-26   
737-388 9 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2024-06-19   
737-404 A AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2025-01-29   
737-404 0 AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2015-11-19   
737-404 1 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-03-14   
737-404 2 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-03-14   
737-404 3 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-04-04   
737-404 4 AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-04-04   
737-404 5 AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2019-10-15   
737-404 6 AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558   2016-04-25   
737-404 7 AUSTTXEE7MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 558   2016-03-14   
737-404 8 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-12-15   
737-404 9 AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-12-15   
737-405 A AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2025-01-17   
737-405 0   903C ONVOY, LLC - TX 558   2025-05-03   
737-405 1   903C ONVOY, LLC - TX 558   2025-05-03   
737-405 7 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2025-01-17   
737-405 9 AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2025-01-17   

<< 1 2

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.