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: 764

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-764 A Hudson CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-764 0 Hudson CO   073H TELNYX LLC 656   2021-01-04   
720-764 1 Hudson CO   624H ONVOY SPECTRUM, LLC 656   2021-07-19   
720-764 2 Hudson CO   026D ONVOY, LLC - CO 656   2021-03-07   
720-764 3 Hudson CO   026D ONVOY, LLC - CO 656   2021-03-07   
720-764 5 Hudson CO   026D ONVOY, LLC - CO 656   2020-12-19   
720-764 6 Hudson CO   026D ONVOY, LLC - CO 656   2020-12-19   
720-764 7 Hudson CO   026D ONVOY, LLC - CO 656   2020-12-19   
720-764 8 Hudson CO   710A ALLO COMMUNICATIONS, LLC - NE 656   2021-04-15   
720-764 9 Hudson CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2021-03-21   

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

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