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: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-856 A Fort Lupton CO HLYKCOXC0MD  026D ONVOY, LLC - CO 656      
720-856 0 Fort Lupton CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2021-12-25   
720-856 1 Fort Lupton CO   515J IP HORIZON LLC 656   2022-04-29   
720-856 2 Fort Lupton CO   026D ONVOY, LLC - CO 656   2021-12-26   
720-856 3 Fort Lupton CO   026D ONVOY, LLC - CO 656   2021-12-26   
720-856 4 Fort Lupton CO   026D ONVOY, LLC - CO 656   2021-12-26   
720-856 5 Fort Lupton CO   073H TELNYX LLC 656   2022-05-22   
720-856 6 Fort Lupton CO   073H TELNYX LLC 656   2022-09-08   
720-856 7 Fort Lupton CO   197D VONAGE AMERICA LLC 656   2022-07-22   
720-856 8 Fort Lupton CO   145J TERRA NOVA TELECOM INC. 656   2024-02-14   
720-856 9 Fort Lupton CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2021-12-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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