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 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
970-909 8 Greeley CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2021-11-02   
970-909 9 Greeley CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2023-07-24   
970-910 A Greeley CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-12-07   
970-910 0 Greeley CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2025-02-17   
970-910 1 Greeley CO CLSPCOMAXRY  624H ONVOY SPECTRUM, LLC 656   2025-01-03   
970-910 2 Greeley CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2025-04-17   
970-910 3 Greeley CO   624H ONVOY SPECTRUM, LLC 656   2025-05-15   
970-910 4 Greeley CO   624H ONVOY SPECTRUM, LLC 656   2025-05-15   
970-910 5 Greeley CO   490J BOOST SUBSCRIBERCO L.L.C. 656   2025-05-05   
970-910 6 Greeley CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-12-08   
970-910 7 Greeley CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-12-08   
970-910 8 Greeley CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-12-07   
970-910 9 Greeley CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-12-07   
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   
970-912 8 Cortez CO   026D ONVOY, LLC - CO 656   2026-02-06   
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   
970-915 A Grand Junction CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2025-12-26   
970-915 0 Grand Junction CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2025-12-29   
970-915 1 Grand Junction CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2025-12-29   
970-915 9 Grand Junction CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656   2025-12-26   
970-916 A Aspen CO   026D ONVOY, LLC - CO 656   2026-02-07   
970-916 0 Aspen CO   026D ONVOY, LLC - CO 656   2026-02-07   
970-917 A Durango CO   6529 T-MOBILE USA, INC. 656   2026-01-17   
970-917 0 Durango CO   6529 T-MOBILE USA, INC. 656   2026-01-17   
970-917 1 Durango CO   6529 T-MOBILE USA, INC. 656   2026-01-17   
970-917 7 Durango CO   6529 T-MOBILE USA, INC. 656   2026-01-17   
970-917 9 Durango CO   6529 T-MOBILE USA, INC. 656   2026-01-17   
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   

<< 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 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.