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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-457 A Big Wells TX BGWLTXBWRS0  9533 SOUTHWESTERN BELL 566      
830-457 0 Big Wells TX   145J TERRA NOVA TELECOM INC. 566      
830-457 1 Big Wells TX BGWLTXBWRS0  9533 SOUTHWESTERN BELL 566      
830-457 2 Big Wells TX BGWLTXBWRS0  9533 SOUTHWESTERN BELL 566      
830-457 3 Big Wells TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-457 4 Big Wells TX SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566      
830-457 5 Big Wells TX SNANTXCA58Z  516C AT&T CORP. 566      
830-457 6 Big Wells TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-457 7 Big Wells TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-457 8 Big Wells TX SNANTXDIX6X  073H TELNYX LLC 566      
830-457 9 Big Wells TX SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.