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 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-572 8 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2017-03-02   
720-572 9 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2017-07-12   
720-573 A Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656      
720-573 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2014-12-04   
720-573 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2014-12-04   
720-573 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2014-12-04   
720-573 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2014-12-02   
720-573 4 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2015-01-08   
720-573 5 Denver CO AURSCOFWDS0  4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO 656   2014-12-01   
720-573 6 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2015-03-13   
720-573 7 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2015-02-18   
720-573 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2015-10-10   
720-573 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2015-03-13   
720-574 A Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-574 0 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-08-31   
720-574 1 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-08-31   
720-574 2 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-08-31   
720-574 3 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-08-31   
720-574 4 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-09-24   
720-574 5 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-09-24   
720-574 6 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-09-24   
720-574 7 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-09-24   
720-574 8 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-09-24   
720-574 9 Denver CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2018-09-24   
720-575 A Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-575 0 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 1 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 2 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 3 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 4 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 5 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 6 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 8 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-575 9 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2015-01-10   
720-576 A Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-576 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 1 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 2 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 3 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 4 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 5 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 8 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-576 9 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2016-12-24   
720-577 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-577 0 Denver CO DNVRCOII4MD  5562 METROPCS, INC. 656   2014-08-26   
720-577 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2014-08-24   
720-577 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2014-08-24   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.