Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-912 A Cortez CO   641H TDS BROADBAND SERVICE LLC 656      
970-912 0 Cortez CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2025-01-11   
970-912 1 Cortez CO   641H TDS BROADBAND SERVICE LLC 656   2025-11-03   
970-913 A La Salle CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2025-11-07   
970-913 0 La Salle CO   078F BANDWIDTH.COM CLEC, LLC - CO 656   2025-11-07   
970-914 A Vail CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-914 1 Vail CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2020-02-03   
970-914 2 Vail CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2020-02-03   
970-914 3 Vail CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2020-02-03   
970-914 4 Vail CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2020-02-03   
970-914 5 Vail CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2025-01-03   
970-914 7 Vail CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2020-02-03   
970-914 8 Vail CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2022-07-05   
970-914 9 Vail CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2023-12-23   
970-919 A Silverton CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
970-919 0 Silverton CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2015-05-25   
970-919 1 Silverton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-08-05   
970-919 2 Silverton CO DNVRCO26XIX  073H TELNYX LLC 656   2018-05-02   
970-919 3 Silverton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-12-31   
970-919 4 Silverton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2018-12-31   
970-919 5 Silverton CO DNVTCOZICMD  515J IP HORIZON LLC 656   2024-08-08   
970-919 6 Silverton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2020-08-08   
970-919 7 Silverton CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-01-17   
970-919 8 Silverton CO GDJTCOMAPMD  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2016-06-20   
970-919 9 Silverton CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2015-10-23   
970-920 A Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-921 A Crawford CO CRFRCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-921 0 Crawford CO CRFRCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-921 1 Crawford CO GDJTCOMAPMD  5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO 656   2016-11-05   
970-921 2 Crawford CO CRFRCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-921 3 Crawford CO CRFRCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-921 4 Crawford CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2022-10-01   
970-921 5 Crawford CO CRFRCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-921 6 Crawford CO   145J TERRA NOVA TELECOM INC. 656   2025-05-24   
970-921 7 Crawford CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-07-22   
970-921 9 Crawford CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-09-14   
970-922 A Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-922 0 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-922 1 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-922 2 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-922 3 Aspen CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-04-22   
970-922 4 Aspen CO   145J TERRA NOVA TELECOM INC. 656   2023-06-24   
970-922 5 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-922 6 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-922 7 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-922 8 Aspen CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2016-03-25   
970-922 9 Aspen CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2016-03-25   
970-923 A Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-924 A Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656      
970-924 0 Aspen CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2014-10-04   
970-924 1 Aspen CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-01-29   
970-924 2 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-924 3 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-924 4 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-924 5 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-924 6 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-924 7 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-924 8 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-924 9 Aspen CO SNMSCOMARS1  9636 QWEST CORPORATION 656   2007-07-23   
970-925 A Aspen CO ASPECOMADS0  9636 QWEST CORPORATION 656      
970-926 A Edwards CO EDWRCOXCDS1  2185 CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK 656      
970-927 A Basalt CO BSLTCOMADS0  9636 QWEST CORPORATION 656      
970-928 A Glenwood Springs CO GLSPCOMADS0  9636 QWEST CORPORATION 656      
970-929 A Somerset CO SMRTCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-929 0 Somerset CO SMRTCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-929 1 Somerset CO SMRTCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-929 2 Somerset CO SMRTCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-929 3 Somerset CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-07-22   
970-929 4 Somerset CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2022-10-01   
970-929 5 Somerset CO SMRTCOXCRP0  2184 DELTA COUNTY TELE-COMM, INC. 656      
970-929 6 Somerset CO   145J TERRA NOVA TELECOM INC. 656   2025-05-15   
970-929 8 Somerset CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2020-09-26   
970-930 A Glenwood Springs CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-930 0 Glenwood Springs CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
970-930 1 Glenwood Springs CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2008-11-20   
970-930 2 Glenwood Springs CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2007-01-02   
970-930 3 Glenwood Springs CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-03-11   
970-930 4 Glenwood Springs CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-03-11   
970-930 5 Glenwood Springs CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2006-06-17   
970-930 6 Glenwood Springs CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2014-09-19   
970-930 7 Glenwood Springs CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-02-27   
970-930 8 Glenwood Springs CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2013-04-26   
970-930 9 Glenwood Springs CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2013-04-26   
970-931 A Gateway CO NUCLCOXCDS0  2193 NUCLA-NATURITA TEL. CO. 656      
970-932 A Estes Park CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656      
970-932 0 Estes Park CO   515J IP HORIZON LLC 656   2022-09-11   
970-932 1 Estes Park CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-07-24   
970-932 2 Estes Park CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2022-04-22   
970-932 3 Estes Park CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2022-10-02   
970-932 4 Estes Park CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-10-14   
970-932 5 Estes Park CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-10-14   
970-932 6 Estes Park CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2025-01-03   
970-932 7 Estes Park CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2022-04-21   
970-932 8 Estes Park CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-03-07   
970-932 9 Estes Park CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2023-09-08   
970-933 A Rangely CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
970-933 0 Rangely CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2023-05-20   
970-933 3 Rangely CO DNVRCO26XUX  516J TON80 COMMUNICATIONS, LLC 656   2021-09-30   
970-933 4 Rangely CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2021-10-29   
970-933 5 Rangely CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2022-01-28   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 >>

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.