Local Calling Guide

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NPA: 970 [Rate centres in NPA 970] [Dial plan for NPA 970]

NXX: 431

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-431 A Gypsum CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-431 0 Gypsum CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-04-16   
970-431 1 Gypsum CO   5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2017-04-09   
970-431 2 Gypsum CO   026D ONVOY, LLC - CO 656   2012-12-13   
970-431 3 Gypsum CO   026D ONVOY, LLC - CO 656   2012-12-13   
970-431 4 Gypsum CO   026D ONVOY, LLC - CO 656   2012-12-13   
970-431 5 Gypsum CO   026D ONVOY, LLC - CO 656   2012-12-13   
970-431 6 Gypsum CO   026D ONVOY, LLC - CO 656   2012-12-13   
970-431 7 Gypsum CO   026D ONVOY, LLC - CO 656   2007-09-04   
970-431 8 Gypsum CO   026D ONVOY, LLC - CO 656   2011-04-03   
970-431 9 Gypsum CO   508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-05   

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

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