Local Calling Guide

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

NXX: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-251 A Crested Butte CO CRBTCOMARS1  9636 QWEST CORPORATION 656      
970-251 0 Crested Butte CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2012-02-04   
970-251 1 Crested Butte CO   026D ONVOY, LLC - CO 656   2013-04-04   
970-251 3 Crested Butte CO   9636 QWEST CORPORATION 656   2008-10-10   
970-251 4 Crested Butte CO   7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2012-12-13   
970-251 5 Crested Butte CO   793K TWC IP ENABLED SERVICES, LLC 656   2007-04-25   
970-251 7 Crested Butte CO   026D ONVOY, LLC - CO 656   2007-03-18   
970-251 8 Crested Butte CO   026D ONVOY, LLC - CO 656   2012-12-17   
970-251 9 Crested Butte CO   026D ONVOY, LLC - CO 656   2013-03-24   

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

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