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
970-889 1 Fort Collins CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-04-04   
970-889 2 Fort Collins CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2014-08-11   
970-889 3 Fort Collins CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2014-08-15   
970-889 4 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2014-03-26   
970-889 5 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2014-03-26   
970-889 6 Fort Collins CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2013-12-03   
970-889 7 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2013-12-02   
970-889 8 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2013-12-02   
970-889 9 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2013-12-02   
970-890 A Oak Creek CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656      
970-890 0 Oak Creek CO DNVRCO26XIX  073H TELNYX LLC 656   2018-05-02   
970-890 1 Oak Creek CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2016-04-22   
970-890 2 Oak Creek CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2025-01-03   
970-890 3 Oak Creek CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2023-01-06   
970-890 6 Oak Creek CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2016-05-28   
970-890 7 Oak Creek CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-04-23   
970-890 8 Oak Creek CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-04-23   
970-890 9 Oak Creek CO DNVTCOZICMD  515J IP HORIZON LLC 656   2024-07-12   
970-891 A New Castle CO DNVRCO26XLX  939H COMMIO, LLC 656   2024-05-11   
970-891 0 New Castle CO DNVRCO26XLX  939H COMMIO, LLC 656   2024-05-11   
970-891 1 New Castle CO DNVRCO26XLX  939H COMMIO, LLC 656   2024-05-11   
970-891 9 New Castle CO DNVRCO26DS5  278F PEERLESS NETWORK OF COLORADO, LLC - CO 656   2024-05-12   
970-892 A Grand Junction CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2024-05-09   
970-892 0 Grand Junction CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2024-05-09   
970-892 1 Grand Junction CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2024-05-09   
970-892 2 Grand Junction CO DNVRCOMA53Z  732J NUSO, LLC 656   2024-12-04   
970-892 3 Grand Junction CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-05-12   
970-892 4 Grand Junction CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2024-11-27   
970-892 6 Grand Junction CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-08-31   
970-892 7 Grand Junction CO DNVRCOMA53Z  732J NUSO, LLC 656   2024-12-04   
970-892 8 Grand Junction CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2024-05-09   
970-892 9 Grand Junction CO   6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2025-07-23   
970-893 A Fort Collins CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
970-893 0 Fort Collins CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-03-03   
970-893 1 Fort Collins CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2017-03-10   
970-893 2 Fort Collins CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-01-16   
970-893 3 Fort Collins CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2018-07-05   
970-893 4 Fort Collins CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-01-09   
970-893 5 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2016-12-19   
970-893 6 Fort Collins CO DNVRCOII0MD  6529 T-MOBILE USA, INC. 656   2016-12-19   
970-893 7 Fort Collins CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-08-17   
970-893 8 Fort Collins CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-08-17   
970-893 9 Fort Collins CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2016-08-17   
970-894 A Berthoud CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-05-19   
970-894 0 Berthoud CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-05-19   
970-894 1 Berthoud CO DNVTCOZICMD  515J IP HORIZON LLC 656   2024-07-12   
970-894 6 Berthoud CO FTCLCOMAAMD  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656   2024-08-12   
970-894 8 Berthoud CO   641H TDS BROADBAND SERVICE LLC 656   2025-11-03   
970-894 9 Berthoud CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-11-07   
970-895 A Grover CO WGNSCOXCDS1  2209 WIGGINS TEL. ASSN. 656      

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.