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.

NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 766

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-766 A Leander TX AUSTTXGR51Z  965H FRACTEL, LLC 558      
737-766 0 Leander TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2020-12-29   
737-766 1 Leander TX AUSTTXGR58Z  515J IP HORIZON LLC 558   2021-03-18   
737-766 2 Leander TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-04-23   
737-766 3 Leander TX   965H FRACTEL, LLC 558   2019-07-17   
737-766 4 Leander TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2021-11-16   
737-766 5 Leander TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2022-02-13   
737-766 6 Leander TX   965H FRACTEL, LLC 558   2019-07-17   
737-766 7 Leander TX AUSUTX78DS0  004F BANDWIDTH.COM CLEC, LLC - TX 558   2024-10-26   
737-766 8 Leander TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2021-04-23   
737-766 9 Leander TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2021-04-23   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.