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: ASPECOMAGT0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
970-236 A Aspen CO 588A ZIPPYTECH INCORPORATED 656      
970-236 0 Aspen CO 588A ZIPPYTECH INCORPORATED 656      
970-236 5 Aspen CO 588A ZIPPYTECH INCORPORATED 656      
970-279 2 Basalt CO 588A ZIPPYTECH INCORPORATED 656      
970-510 3 Carbondale CO 588A ZIPPYTECH INCORPORATED 656      
970-989 1 Glenwood Springs CO 588A ZIPPYTECH INCORPORATED 656      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.