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: 746

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-746 A Berthoud CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
970-746 0 Berthoud CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2021-12-02   
970-746 3 Berthoud CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2021-07-19   
970-746 4 Berthoud CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-11-02   
970-746 5 Berthoud CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-03-07   
970-746 6 Berthoud CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-03-07   
970-746 7 Berthoud CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2020-10-30   
970-746 8 Berthoud CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2021-09-08   
970-746 9 Berthoud CO DNVRCO26XIX  073H TELNYX LLC 656   2021-01-27   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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