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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-850 A Bandera TX SNANTX91DS2  7715 MATRIX TELECOM, LLC. S/I/I TNCI - TX 566      
830-850 0 Bandera TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566      
830-850 1 Bandera TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2021-03-19   
830-850 2 Bandera TX   793K TWC IP ENABLED SERVICES, LLC 566   2023-02-03   
830-850 4 Bandera TX SNANTX39DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 566   2016-05-10   
830-850 6 Bandera TX SNANTXCA41Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2017-08-14   
830-850 8 Bandera TX SNANTXCAHMD  073H TELNYX LLC 566   2017-03-22   
830-850 9 Bandera TX SNANTX91X7Y  5562 METROPCS, INC. 566   2021-05-10   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.