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: 719 [Rate centres in NPA 719] [Dial plan for NPA 719]

NXX: 605

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
719-605 A Calhan CO CLSPCOMAXWX  026D ONVOY, LLC - CO 658      
719-605 0 Calhan CO   6010 NEW CINGULAR WIRELESS PCS, LLC 658   2025-02-15   
719-605 2 Calhan CO CLSPCOMAXWX  026D ONVOY, LLC - CO 658   2023-11-03   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.