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: 777H PACOPTIC NETWORKS, LLC - CO

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
720-759 A Longmont CO BLDRCOWNDS0  656      
720-759 0 Longmont CO BLDRCOWNDS0  656   2016-09-24   
720-759 1 Longmont CO BLDRCOWNDS0  656   2016-09-24   
720-759 6 Longmont CO BLDRCOWNDS0  656   2016-09-24   
720-787 A Denver CO BLDRCOWNDS0  656      
720-787 0 Denver CO BLDRCOWNDS0  656   2016-10-07   
720-787 1 Denver CO BLDRCOWNDS0  656   2016-10-07   
720-787 6 Denver CO BLDRCOWNDS0  656   2016-10-07   

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

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