Local Calling Guide
Area code/prefix search
Denver, CO
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 720-971
| 3 |
|
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 720-971
| 4 |
|
5562 METROPCS, INC. |
656 |
|
|
|
| 720-971
| 5 |
|
5562 METROPCS, INC. |
656 |
|
|
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| 720-971
| 6 |
|
5562 METROPCS, INC. |
656 |
|
|
|
| 720-971
| 7 |
|
5562 METROPCS, INC. |
656 |
|
|
|
| 720-971
| 8 |
|
5562 METROPCS, INC. |
656 |
|
|
|
| 720-971
| 9 |
|
5562 METROPCS, INC. |
656 |
|
|
|
| 720-972
| A |
NGLNCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-973
| A |
DNVRCO26XZX |
436J HADLO TECHNOLOGIES, LLC |
656 |
|
|
|
| 720-973
| 0 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2023-06-24 |
|
| 720-973
| 1 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 2 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 3 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 4 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 5 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 6 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 7 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 8 |
|
026D ONVOY, LLC - CO |
656 |
|
2023-06-11 |
|
| 720-973
| 9 |
|
436J HADLO TECHNOLOGIES, LLC |
656 |
|
2023-05-07 |
|
| 720-974
| A |
DNVRCOETPS0 |
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 0 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 1 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 2 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 3 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 4 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 5 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 6 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 7 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-974
| 8 |
|
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
2008-11-28 |
|
| 720-974
| 9 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-975
| A |
DNVRCOETPS0 |
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-975
| 0 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-975
| 1 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-975
| 2 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
|
|
| 720-975
| 3 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2008-05-24 |
|
| 720-975
| 4 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2008-05-24 |
|
| 720-975
| 5 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2008-07-31 |
|
| 720-975
| 6 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2009-01-20 |
|
| 720-975
| 7 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2009-07-29 |
|
| 720-975
| 8 |
|
026D ONVOY, LLC - CO |
656 |
|
2008-09-27 |
|
| 720-975
| 9 |
|
3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
656 |
|
2007-02-12 |
|
| 720-977
| A |
NGLNCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 720-978
| A |
DNVRCOMA53Z |
732J NUSO, LLC |
656 |
|
|
|
| 720-978
| 0 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2023-01-07 |
|
| 720-978
| 1 |
|
732J NUSO, LLC |
656 |
|
2023-01-06 |
|
| 720-978
| 2 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2023-01-07 |
|
| 720-978
| 3 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2023-01-07 |
|
| 720-978
| 4 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2023-01-07 |
|
| 720-978
| 5 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2023-01-07 |
|
| 720-978
| 6 |
|
6529 T-MOBILE USA, INC. |
656 |
|
2023-01-07 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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