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: 918

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-918 A Keenesburg CO DNVRCO26DMD  197D VONAGE AMERICA LLC 656      
720-918 0 Keenesburg CO   073H TELNYX LLC 656   2022-08-27   
720-918 1 Keenesburg CO   939H COMMIO, LLC 656   2022-09-10   
720-918 2 Keenesburg CO   026D ONVOY, LLC - CO 656   2022-08-27   
720-918 3 Keenesburg CO   026D ONVOY, LLC - CO 656   2023-07-24   
720-918 4 Keenesburg CO   515J IP HORIZON LLC 656   2024-07-11   
720-918 6 Keenesburg CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2022-11-13   
720-918 7 Keenesburg CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2022-09-15   
720-918 8 Keenesburg CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2022-08-27   
720-918 9 Keenesburg CO   197D VONAGE AMERICA LLC 656   2022-08-26   

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

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