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: DNVRCOMAPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-339 A Denver CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656      
303-407 A Denver CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656      
303-468 A Denver CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656      
303-535 A Fort Lupton CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656      
303-565 A Denver CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656      
303-962 A Denver CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656   2005-09-12   
720-407 A Denver CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656      
720-473 A Denver CO 2490 CBEYOND COMMUNICATIONS, LLC - CO 656      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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