Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 970 [Rate centres in NPA 970] [Dial plan for NPA 970]

NXX: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-678 A Basalt CO DNVRCO03DS1  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656      
970-678 0 Basalt CO   073H TELNYX LLC 656   2018-05-02   
970-678 1 Basalt CO   624H ONVOY SPECTRUM, LLC 656   2021-11-07   
970-678 2 Basalt CO   624H ONVOY SPECTRUM, LLC 656   2021-11-07   
970-678 3 Basalt CO   026D ONVOY, LLC - CO 656   2021-03-07   
970-678 4 Basalt CO   026D ONVOY, LLC - CO 656   2021-03-07   
970-678 5 Basalt CO   5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2017-05-08   
970-678 6 Basalt CO   624H ONVOY SPECTRUM, LLC 656   2021-07-19   
970-678 8 Basalt CO   515J IP HORIZON LLC 656   2022-09-16   
970-678 9 Basalt CO   516J TON80 COMMUNICATIONS, LLC 656   2021-10-15   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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