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.

Campbellton EMS, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
830-256 A CMTNTXCBRS0  9533 SOUTHWESTERN BELL 566      
830-256 0 SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-256 1 CMTNTXCBRS0  9533 SOUTHWESTERN BELL 566      
830-256 2 SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-256 3 SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-256 4 SNANTXCA88Z  516J TON80 COMMUNICATIONS, LLC 566      
830-256 5 SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-256 7 SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-256 8 SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566      
830-256 9 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.