Local Calling Guide
Area code/prefix search
Denver, CO
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 720-584
| 3 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-20 |
|
| 720-584
| 4 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-20 |
|
| 720-584
| 5 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-20 |
|
| 720-584
| 6 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-20 |
|
| 720-584
| 7 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-20 |
|
| 720-584
| 8 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-20 |
|
| 720-584
| 9 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-20 |
|
| 720-585
| A |
|
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 720-585
| 0 |
|
641H TDS BROADBAND SERVICE LLC |
656 |
|
2025-11-03 |
|
| 720-585
| 1 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-18 |
|
| 720-585
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2012-12-18 |
|
| 720-585
| 3 |
|
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2024-09-19 |
|
| 720-585
| 4 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-18 |
|
| 720-585
| 5 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-18 |
|
| 720-585
| 6 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-18 |
|
| 720-585
| 7 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-18 |
|
| 720-585
| 8 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-18 |
|
| 720-585
| 9 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-18 |
|
| 720-586
| A |
DNVRCOII3MD |
5562 METROPCS, INC. |
656 |
|
|
|
| 720-586
| 0 |
|
5562 METROPCS, INC. |
656 |
|
2017-07-24 |
|
| 720-586
| 1 |
|
5562 METROPCS, INC. |
656 |
|
2017-07-24 |
|
| 720-586
| 2 |
|
5562 METROPCS, INC. |
656 |
|
2017-07-24 |
|
| 720-586
| 3 |
|
5562 METROPCS, INC. |
656 |
|
2017-07-24 |
|
| 720-586
| 4 |
|
026D ONVOY, LLC - CO |
656 |
|
2017-07-25 |
|
| 720-586
| 5 |
|
5562 METROPCS, INC. |
656 |
|
2017-07-24 |
|
| 720-586
| 6 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
656 |
|
2017-07-25 |
|
| 720-586
| 7 |
|
5562 METROPCS, INC. |
656 |
|
2017-07-24 |
|
| 720-586
| 8 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
656 |
|
2017-07-25 |
|
| 720-586
| 9 |
|
5562 METROPCS, INC. |
656 |
|
2017-07-24 |
|
| 720-587
| A |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
2025-04-08 |
|
| 720-587
| 0 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-587
| 1 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-587
| 2 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2009-06-16 |
|
| 720-587
| 3 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-587
| 4 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-587
| 5 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2009-10-16 |
|
| 720-587
| 6 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-587
| 7 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2007-11-29 |
|
| 720-587
| 8 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 720-587
| 9 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2007-11-29 |
|
| 720-588
| A |
FTCLCOMA7MD |
551G NUSO, LLC |
656 |
|
|
|
| 720-588
| 0 |
|
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2012-12-20 |
|
| 720-588
| 1 |
|
551G NUSO, LLC |
656 |
|
2012-12-19 |
|
| 720-588
| 2 |
|
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2012-12-20 |
|
| 720-588
| 3 |
|
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2012-12-20 |
|
| 720-588
| 4 |
|
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2012-12-20 |
|
| 720-588
| 5 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-20 |
|
| 720-588
| 6 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-20 |
|
| 720-588
| 7 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2012-12-20 |
|
| 720-588
| 8 |
|
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2012-12-20 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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