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: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-231 A Gillett TX SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566      
830-231 0 Gillett TX SNANTXCA73Z  939H COMMIO, LLC 566   2023-08-27   
830-231 1 Gillett TX SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566      
830-231 2 Gillett TX SNANTXCAHMD  073H TELNYX LLC 566   2019-09-27   
830-231 4 Gillett TX SNANTXDIXKX  506J TWILIO INTERNATIONAL, INC. 566   2021-05-27   
830-231 6 Gillett TX SNANTXCA41Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2020-06-08   
830-231 8 Gillett TX SNANTXCA80Z  624H ONVOY SPECTRUM, LLC 566   2021-06-24   
830-231 9 Gillett TX SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.