Local Calling Guide
Area code/prefix search
NPA: 303
[Rate centres in NPA 303]
[Dial plan for NPA 303]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 303-715
| 3 |
Denver |
CO |
DNVRCOSODS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-715
| 4 |
Denver |
CO |
DNVRCOSODS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-715
| 5 |
Denver |
CO |
DNVRCOSODS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-715
| 6 |
Denver |
CO |
DNVRCOSODS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-715
| 7 |
Denver |
CO |
DNVRCOSODS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-715
| 8 |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2006-11-04 |
|
| 303-715
| 9 |
Denver |
CO |
DNVRCOSODS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-716
| A |
Denver |
CO |
DNVRCOSWDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-717
| A |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-718
| A |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-718
| 0 |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-718
| 1 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2003-06-03 |
|
| 303-718
| 2 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2003-06-03 |
|
| 303-718
| 3 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2003-08-31 |
|
| 303-718
| 4 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2003-10-27 |
|
| 303-718
| 5 |
Fort Lupton |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
2003-09-24 |
|
| 303-718
| 6 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2004-11-04 |
|
| 303-718
| 7 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2004-09-17 |
|
| 303-718
| 8 |
Fort Lupton |
CO |
DNVRCOII3MD |
5562 METROPCS, INC. |
656 |
|
2003-12-17 |
|
| 303-718
| 9 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2004-11-18 |
|
| 303-719
| A |
Deer Trail |
CO |
|
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-719
| 0 |
Deer Trail |
CO |
|
145J TERRA NOVA TELECOM INC. |
656 |
|
2025-05-21 |
|
| 303-720
| A |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-720
| 0 |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2008-08-04 |
|
| 303-720
| 1 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2008-08-27 |
|
| 303-720
| 2 |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2008-09-04 |
|
| 303-720
| 3 |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2008-09-29 |
|
| 303-720
| 4 |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2008-10-09 |
|
| 303-720
| 5 |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2008-10-16 |
|
| 303-720
| 6 |
Fort Lupton |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2008-11-20 |
|
| 303-720
| 7 |
Fort Lupton |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2010-08-14 |
|
| 303-720
| 8 |
Fort Lupton |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2008-12-11 |
|
| 303-720
| 9 |
Fort Lupton |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2008-12-18 |
|
| 303-721
| A |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-722
| A |
Denver |
CO |
DNVRCOSODS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-723
| A |
Denver |
CO |
AURRCOBUDS0 |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 303-724
| A |
Denver |
CO |
AURRCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-725
| A |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 0 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 1 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 2 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 3 |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2006-11-04 |
|
| 303-725
| 4 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 5 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 6 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 7 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 8 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-725
| 9 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-726
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-727
| A |
Denver |
CO |
DNVRCOWSDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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