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.

Switch: GNSNCOMADS0

Remotes:

Switch Switch name Switch type
CRBTCOMARS1  CRESTED BUTTE  AXR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
970-641 A Gunnison CO 9636 QWEST CORPORATION 656      
970-642 A Gunnison CO 9636 QWEST CORPORATION 656      
970-642 0 Gunnison CO 9636 QWEST CORPORATION 656      
970-642 1 Gunnison CO 9636 QWEST CORPORATION 656      
970-642 4 Gunnison CO 9636 QWEST CORPORATION 656      
970-943 A Gunnison CO 9636 QWEST CORPORATION 656      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.