Local Calling Guide
Area code/prefix search
Denver, CO
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 720-478
| 7 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2013-06-22 |
|
| 720-478
| 8 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2013-06-22 |
|
| 720-478
| 9 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2013-06-22 |
|
| 720-479
| A |
DNVRCOMDDS0 |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 0 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 1 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 2 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 3 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 4 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 5 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 6 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 7 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-479
| 8 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
|
|
| 720-479
| 9 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-480
| A |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 720-481
| A |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 720-481
| 0 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-30 |
|
| 720-481
| 1 |
|
5562 METROPCS, INC. |
656 |
|
2014-09-30 |
|
| 720-481
| 2 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2014-09-30 |
|
| 720-481
| 3 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2014-09-30 |
|
| 720-481
| 4 |
|
5562 METROPCS, INC. |
656 |
|
2014-09-30 |
|
| 720-481
| 5 |
|
5562 METROPCS, INC. |
656 |
|
2014-09-30 |
|
| 720-481
| 6 |
|
5562 METROPCS, INC. |
656 |
|
2014-09-30 |
|
| 720-481
| 7 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2014-09-29 |
|
| 720-481
| 8 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2014-09-29 |
|
| 720-481
| 9 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2014-09-29 |
|
| 720-482
| A |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-483
| A |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 720-483
| 0 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-19 |
|
| 720-483
| 1 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-19 |
|
| 720-483
| 2 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-19 |
|
| 720-483
| 3 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-19 |
|
| 720-483
| 4 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-19 |
|
| 720-483
| 5 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-19 |
|
| 720-483
| 6 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2014-09-19 |
|
| 720-483
| 7 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2014-09-18 |
|
| 720-483
| 8 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2014-09-18 |
|
| 720-483
| 9 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2014-09-18 |
|
| 720-484
| A |
DNVRCOETPS0 |
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-484
| 0 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2012-07-27 |
|
| 720-484
| 1 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2012-07-27 |
|
| 720-484
| 2 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2012-06-03 |
|
| 720-484
| 3 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2011-09-15 |
|
| 720-484
| 4 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2011-09-16 |
|
| 720-484
| 5 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2011-09-16 |
|
| 720-484
| 6 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2011-09-16 |
|
| 720-484
| 7 |
|
026D ONVOY, LLC - CO |
656 |
|
2011-09-16 |
|
| 720-484
| 8 |
|
026D ONVOY, LLC - CO |
656 |
|
2011-09-16 |
|
| 720-484
| 9 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2012-07-27 |
|
| 720-485
| A |
DNVRCOMA39Z |
318J COMCAST IP PHONE, LLC |
656 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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