Local Calling Guide

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

NXX: 287

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-287 A Silt CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
970-287 0 Silt CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2014-11-16   
970-287 1 Silt CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-11-19   
970-287 2 Silt CO   026D ONVOY, LLC - CO 656   2019-09-09   
970-287 3 Silt CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2019-10-17   
970-287 4 Silt CO   073H TELNYX LLC 656   2020-01-29   
970-287 5 Silt CO   278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2020-03-13   
970-287 6 Silt CO   026D ONVOY, LLC - CO 656   2018-12-31   
970-287 7 Silt CO   508J CENTURYLINK COMMUNICATIONS, LLC 656   2014-11-18   
970-287 8 Silt CO   073H TELNYX LLC 656   2018-05-02   
970-287 9 Silt CO   026D ONVOY, LLC - CO 656   2018-12-31   

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

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