Local Calling Guide
Area code/prefix search
Denver, CO
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 720-389
| 8 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2009-04-15 |
|
| 720-389
| 9 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2009-06-18 |
|
| 720-390
| A |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 720-390
| 0 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-11-03 |
|
| 720-390
| 1 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-11-03 |
|
| 720-390
| 2 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-11-03 |
|
| 720-390
| 3 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2013-10-21 |
|
| 720-390
| 4 |
|
278F PEERLESS NETWORK OF COLORADO, LLC - CO |
656 |
|
2013-09-08 |
|
| 720-390
| 5 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2013-10-14 |
|
| 720-390
| 6 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2013-10-14 |
|
| 720-390
| 7 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2013-10-14 |
|
| 720-390
| 8 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-11-03 |
|
| 720-390
| 9 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-11-03 |
|
| 720-391
| A |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 720-391
| 0 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 1 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 2 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 3 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 4 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 5 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 6 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 7 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2013-08-26 |
|
| 720-391
| 8 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2013-08-29 |
|
| 720-391
| 9 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2013-08-29 |
|
| 720-393
| A |
AURSCOFWDS0 |
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
|
|
| 720-393
| 0 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2010-08-17 |
|
| 720-393
| 1 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 2 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 3 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 4 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 5 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 6 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 7 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 8 |
|
4574 LEVEL 3 TELECOM OF COLORADO, LLC - CO |
656 |
|
2010-07-29 |
|
| 720-393
| 9 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2010-08-17 |
|
| 720-394
| A |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 720-395
| A |
DNVRCOMAX5Z |
7421 AT&T - LOCAL |
656 |
|
|
|
| 720-395
| 0 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 1 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 2 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 3 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 4 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 5 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 6 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 7 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 8 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-395
| 9 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-396
| A |
DNVRCOMAX5Z |
7421 AT&T - LOCAL |
656 |
|
|
|
| 720-396
| 0 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
| 720-396
| 1 |
|
7421 AT&T - LOCAL |
656 |
|
2009-10-26 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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