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 |
| 303-900
| 8 |
Georgetown |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2010-08-13 |
|
| 303-900
| 9 |
Georgetown |
CO |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2009-12-17 |
|
| 303-901
| A |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 0 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 1 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 2 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 3 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 4 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 5 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 6 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 7 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 8 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-901
| 9 |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-902
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-903
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-904
| A |
Denver |
CO |
DNVRCOCLDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-905
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-906
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-907
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-908
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-909
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-910
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-912
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-913
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-914
| A |
Denver |
CO |
DNVRCOSWDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-915
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-916
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-917
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-917
| 0 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-917
| 1 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-917
| 2 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2003-08-08 |
|
| 303-917
| 3 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2003-08-08 |
|
| 303-917
| 4 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2003-08-08 |
|
| 303-917
| 5 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2003-08-08 |
|
| 303-917
| 6 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2003-08-08 |
|
| 303-917
| 7 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-917
| 8 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2003-08-08 |
|
| 303-917
| 9 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-918
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-919
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-920
| A |
Denver |
CO |
NGLNCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-921
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-922
| A |
Denver |
CO |
DNVRCOWSDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-923
| A |
Denver |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-923
| 0 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2022-06-30 |
|
| 303-923
| 1 |
Denver |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-923
| 2 |
Denver |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-923
| 3 |
Denver |
CO |
DNVRCOMA39Z |
318J COMCAST IP PHONE, LLC |
656 |
|
2007-02-09 |
|
| 303-923
| 4 |
Denver |
CO |
DNVRCOZJNMD |
7421 AT&T - LOCAL |
656 |
|
2002-04-30 |
|
| 303-923
| 5 |
Denver |
CO |
|
026D ONVOY, LLC - CO |
656 |
|
2008-08-29 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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