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: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-715 3 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2019-04-08   
720-715 4 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2019-04-08   
720-715 5 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2019-04-08   
720-715 6 Deckers CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2019-11-08   
720-715 7 Deckers CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2019-08-08   
720-715 8 Deckers CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2019-06-25   
720-715 9 Deckers CO DNVRCO26XIX  073H TELNYX LLC 656   2019-04-29   
720-716 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-716 0 Denver CO DNVRCOII3MD  5562 METROPCS, INC. 656   2021-01-23   
720-716 1 Denver CO DNVRCOII3MD  5562 METROPCS, INC. 656   2021-01-23   
720-716 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-05-25   
720-716 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2020-05-26   
720-716 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2020-05-26   
720-716 5 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-05-26   
720-716 6 Denver CO DNVRCOMA35Z  321J HD CARRIER LLC 656   2020-05-26   
720-716 7 Denver CO DNVRCOMA35Z  321J HD CARRIER LLC 656   2020-05-26   
720-716 8 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2021-01-23   
720-716 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2020-05-26   
720-717 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-717 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2015-05-07   
720-717 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-05-20   
720-717 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-05-20   
720-717 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-05-20   
720-717 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-05-20   
720-717 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-07-22   
720-717 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-07-22   
720-717 7 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2015-05-23   
720-717 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-04-17   
720-717 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2015-04-17   
720-718 A Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656      
720-718 0 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 1 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 2 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 3 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 4 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 5 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 6 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 7 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 8 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-718 9 Longmont CO LNMTCOMADS1  9636 QWEST CORPORATION 656   2017-01-18   
720-719 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2024-06-07   
720-719 4 Denver CO DNVRCOMA53Z  732J NUSO, LLC 656   2024-08-02   
720-719 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-719 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2024-06-08   
720-720 A Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 0 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 1 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 2 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 3 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 4 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 5 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 6 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-720 9 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2024-10-18   
720-721 A Denver CO DNVRCOMA37Z  507J THE VOICE APPLICATION NETWORK, LLC 656      
720-721 0 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-06-12   
720-721 1 Denver CO DNVRCOMA37Z  507J THE VOICE APPLICATION NETWORK, LLC 656   2016-06-12   
720-721 2 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-06-12   
720-721 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2016-08-15   
720-721 4 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 5 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 6 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 7 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-06-12   
720-721 8 Denver CO DNVRCOMA32Z  321J HD CARRIER LLC 656   2016-09-01   
720-721 9 Denver CO DNVRCOMA24Z  557H WIDE VOICE, LLC - CO 656   2016-09-01   
720-722 A Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-722 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 4 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 6 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 7 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2010-06-30   
720-722 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-722 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-07-10   
720-723 A Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656      
720-723 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-04-09   
720-723 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-04-09   
720-723 2 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-04-16   
720-723 3 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 4 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 5 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 6 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 7 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-03-21   
720-723 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2013-04-09   
720-723 9 Denver CO DNVRCOII3MD  5562 METROPCS, INC. 656   2013-12-25   
720-724 A Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656      
720-724 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-06-09   
720-724 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-06-09   
720-724 2 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2013-05-31   
720-724 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2013-06-27   

<< 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 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.