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: 390

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-390 A Seguin TX SNANTXCA74Z  939H COMMIO, LLC 566      
830-390 0 Seguin TX SNANTXCA74Z  939H COMMIO, LLC 566      
830-390 1 Seguin TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-390 2 Seguin TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-390 3 Seguin TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-390 4 Seguin TX SNANTXCA94Z  490J DISH WIRELESS, LLC 566      
830-390 5 Seguin TX SNANTX91SMD  6529 T-MOBILE USA, INC. 566      
830-390 6 Seguin TX SNANTXCA41Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-390 8 Seguin TX SNANTXCA74Z  939H COMMIO, LLC 566      
830-390 9 Seguin TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.