Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 686

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-686 A Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-686 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-11-28   
720-686 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2010-11-28   
720-686 2 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-28   
720-686 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-09-15   
720-686 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-09-15   
720-686 5 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-28   
720-686 6 Denver CO DNVRCO26XSX  145J TERRA NOVA TELECOM INC. 656   2024-09-12   
720-686 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-09-15   
720-686 8 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-28   
720-686 9 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2010-11-28   

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

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