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.
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OCN: 881B ILOKA, INC. DBA NEWCLOUD NETWORKS - CO

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
303-867 A Denver CO DNVRCO89DS0  656      
303-867 0 Denver CO DNVRCO89DS0  656   2005-12-26   
719-304 A Colorado Springs-Main CO CLSPCOEADS1  658      
719-304 0 Colorado Springs-Main CO CLSPCOEADS1  658   2006-03-23   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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