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: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
719-770 A Lamar CO CLSPCO11X0X  939H COMMIO, LLC 658      
719-770 0 Lamar CO CLSPCO11X0X  939H COMMIO, LLC 658   2023-06-04   
719-770 1 Lamar CO DNVRCO26XLX  939H COMMIO, LLC 658   2024-03-23   
719-770 7 Lamar CO   145J TERRA NOVA TELECOM INC. 658   2025-05-21   
719-770 9 Lamar CO CLSPCOMAXKY  078F BANDWIDTH.COM CLEC, LLC - CO 658   2023-11-19   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.