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: 830 [Rate centres in NPA 830] [Dial plan for NPA 830]

NXX: 665

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-665 A Devine EMS TX DEVNTXDVDS0  9533 SOUTHWESTERN BELL 566      
830-665 0 Devine EMS TX SNANTXCA80Z  624H ONVOY SPECTRUM, LLC 566   2021-12-10   
830-665 1 Devine EMS TX SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566   2021-10-23   
830-665 2 Devine EMS TX DEVNTXDVDS0  9533 SOUTHWESTERN BELL 566      
830-665 3 Devine EMS TX   145J TERRA NOVA TELECOM INC. 566   2022-05-05   
830-665 4 Devine EMS TX DEVNTXDVDS0  9533 SOUTHWESTERN BELL 566      
830-665 5 Devine EMS TX DEVNTXDVDS0  9533 SOUTHWESTERN BELL 566      
830-665 6 Devine EMS TX   145J TERRA NOVA TELECOM INC. 566   2021-09-28   
830-665 7 Devine EMS TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2021-07-31   
830-665 8 Devine EMS TX DEVNTXDVDS0  9533 SOUTHWESTERN BELL 566      
830-665 9 Devine EMS TX DEVNTXDVDS0  9533 SOUTHWESTERN BELL 566      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.