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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Switch: DNVRCO89DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-867 A Denver CO 881B ILOKA, INC. DBA NEWCLOUD NETWORKS - CO 656      
303-867 0 Denver CO 881B ILOKA, INC. DBA NEWCLOUD NETWORKS - CO 656   2005-12-26   
970-851 0 Fort Collins CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-05-03   
970-851 8 Fort Collins CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-05-03   
970-851 9 Fort Collins CO 078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-05-03   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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