Local Calling Guide
Area code/prefix search
Denver, CO
<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 720-863
| 8 |
DNVRCOMA39Z |
318J COMCAST IP PHONE, LLC |
656 |
|
2011-10-21 |
|
| 720-863
| 9 |
DNVRCOMA53Z |
732J NUSO, LLC |
656 |
|
2024-12-04 |
|
| 720-865
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 720-866
| A |
DNVRCO26XSX |
145J TERRA NOVA TELECOM INC. |
656 |
|
|
|
| 720-866
| 0 |
FTCLCOMAAMD |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
2019-04-22 |
|
| 720-866
| 1 |
FTCLCOMAAMD |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
2019-04-22 |
|
| 720-866
| 2 |
FTCLCOMAAMD |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
2019-04-22 |
|
| 720-866
| 3 |
FTCLCOMAAMD |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
2019-04-22 |
|
| 720-866
| 4 |
FTCLCOMAAMD |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
2019-04-22 |
|
| 720-866
| 5 |
FTCLCOMAAMD |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
2019-04-22 |
|
| 720-866
| 6 |
|
145J TERRA NOVA TELECOM INC. |
656 |
|
2019-04-21 |
|
| 720-866
| 7 |
DNVTCOUZ0MD |
829J PAETEC ITEL, LLC |
656 |
|
2019-04-25 |
|
| 720-866
| 8 |
DNVRCOMA39Z |
318J COMCAST IP PHONE, LLC |
656 |
|
2019-05-02 |
|
| 720-866
| 9 |
DNVRCOMA39Z |
318J COMCAST IP PHONE, LLC |
656 |
|
2019-05-02 |
|
| 720-867
| A |
DNVRCOGVDS0 |
8540 GREAT WEST SERVICES, LTD. - CO |
656 |
|
|
|
| 720-869
| A |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 720-869
| 0 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2021-12-10 |
|
| 720-869
| 1 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2021-12-10 |
|
| 720-869
| 2 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-869
| 3 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-869
| 4 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-869
| 5 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-869
| 6 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-869
| 7 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-869
| 8 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-869
| 9 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2021-12-09 |
|
| 720-870
| A |
DNVRCOSHDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-872
| A |
NGLNCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-873
| A |
ENWDCOABDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-874
| A |
ENWDCOABDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-875
| A |
ENWDCOABDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| A |
DNVRCOSHDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 0 |
DNVRCOSHDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 1 |
DNVRCOSHDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 2 |
DNVRCOSHDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 3 |
DNVRCOCPDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 4 |
DNVRCOCPDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 5 |
DNVRCOCPDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 6 |
DNVRCOCPDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-876
| 7 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2008-03-31 |
|
| 720-876
| 8 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2008-03-31 |
|
| 720-876
| 9 |
DNVRCOSHDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-877
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 720-877
| 0 |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2022-07-18 |
|
| 720-877
| 1 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2007-08-17 |
|
| 720-877
| 2 |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2022-07-18 |
|
| 720-877
| 3 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2007-07-29 |
|
| 720-877
| 4 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2007-07-29 |
|
| 720-877
| 5 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2007-07-29 |
|
| 720-877
| 6 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2007-07-29 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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