Local Calling Guide
Area code/prefix search
Denver, CO
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 303-942
| 3 |
|
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
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| 303-942
| 4 |
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7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
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| 303-942
| 5 |
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7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
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| 303-942
| 6 |
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7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
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| 303-942
| 7 |
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7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
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| 303-942
| 8 |
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7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
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| 303-942
| 9 |
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7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
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| 303-943
| A |
DNVRCOMA49Z |
622J SKYE TELECOM LLC DBA SKYETEL |
656 |
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| 303-943
| 0 |
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622J SKYE TELECOM LLC DBA SKYETEL |
656 |
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2021-11-08 |
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| 303-943
| 1 |
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026D ONVOY, LLC - CO |
656 |
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2021-11-09 |
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| 303-943
| 2 |
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624H ONVOY SPECTRUM, LLC |
656 |
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2021-11-09 |
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| 303-943
| 3 |
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5562 METROPCS, INC. |
656 |
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2021-11-09 |
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| 303-943
| 4 |
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5562 METROPCS, INC. |
656 |
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2021-11-09 |
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| 303-943
| 5 |
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624H ONVOY SPECTRUM, LLC |
656 |
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2021-11-09 |
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| 303-943
| 6 |
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624H ONVOY SPECTRUM, LLC |
656 |
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2021-11-09 |
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| 303-943
| 7 |
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624H ONVOY SPECTRUM, LLC |
656 |
|
2021-11-09 |
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| 303-943
| 8 |
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624H ONVOY SPECTRUM, LLC |
656 |
|
2021-11-09 |
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| 303-943
| 9 |
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026D ONVOY, LLC - CO |
656 |
|
2021-11-09 |
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| 303-944
| A |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 0 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 1 |
|
6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 2 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 3 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 4 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 5 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 6 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 7 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 8 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-944
| 9 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-945
| A |
DNVRCOMA39Z |
318J COMCAST IP PHONE, LLC |
656 |
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| 303-945
| 0 |
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6529 T-MOBILE USA, INC. |
656 |
|
2006-12-07 |
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| 303-945
| 1 |
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6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2007-03-19 |
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| 303-945
| 2 |
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5972 INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO |
656 |
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2006-12-08 |
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| 303-945
| 3 |
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6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
2006-07-28 |
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| 303-945
| 4 |
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318J COMCAST IP PHONE, LLC |
656 |
|
2007-06-01 |
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| 303-945
| 5 |
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6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2007-03-26 |
|
| 303-945
| 6 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2007-03-26 |
|
| 303-945
| 7 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-07-07 |
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| 303-945
| 8 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-07-07 |
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| 303-945
| 9 |
|
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2007-03-26 |
|
| 303-946
| A |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
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| 303-946
| 0 |
|
6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 1 |
|
6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 2 |
|
6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 3 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 4 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 5 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 6 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 7 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 8 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-946
| 9 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-947
| A |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
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| 303-948
| A |
DNVRCOCLDS0 |
9636 QWEST CORPORATION |
656 |
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| 303-949
| A |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
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| 303-949
| 0 |
|
6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 1 |
|
6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 2 |
|
6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 3 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 4 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 5 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 6 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 7 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 8 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-949
| 9 |
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6529 T-MOBILE USA, INC. |
656 |
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| 303-951
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
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| 303-951
| 0 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-06-27 |
|
| 303-951
| 1 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-04-23 |
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| 303-951
| 2 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-04-23 |
|
| 303-951
| 3 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-04-23 |
|
| 303-951
| 4 |
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6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
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| 303-951
| 5 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-04-23 |
|
| 303-951
| 6 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-04-23 |
|
| 303-951
| 7 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-04-23 |
|
| 303-951
| 8 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-06-27 |
|
| 303-951
| 9 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-06-27 |
|
| 303-952
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
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| 303-952
| 0 |
|
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
2005-02-24 |
|
| 303-952
| 1 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-06-27 |
|
| 303-952
| 2 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-06-27 |
|
| 303-952
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-06-26 |
|
| 303-952
| 4 |
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6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
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| 303-952
| 5 |
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7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-06-26 |
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| 303-952
| 6 |
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7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-06-26 |
|
| 303-952
| 7 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-06-26 |
|
| 303-952
| 8 |
|
026D ONVOY, LLC - CO |
656 |
|
2006-06-27 |
|
| 303-952
| 9 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2006-07-31 |
|
| 303-953
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-953
| 0 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2006-07-31 |
|
| 303-953
| 1 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2006-07-31 |
|
| 303-953
| 2 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2006-07-31 |
|
| 303-953
| 3 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2005-02-07 |
|
| 303-953
| 4 |
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6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
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| 303-953
| 5 |
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3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2005-07-22 |
|
| 303-953
| 6 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2006-04-10 |
|
| 303-953
| 7 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2006-06-12 |
|
| 303-953
| 8 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2006-07-31 |
|
| 303-953
| 9 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2006-07-31 |
|
| 303-954
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-954
| 0 |
|
318J COMCAST IP PHONE, LLC |
656 |
|
2006-07-31 |
|
| 303-954
| 1 |
|
9636 QWEST CORPORATION |
656 |
|
2005-10-28 |
|
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Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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