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 |
| 303-879
| 9 |
Denver |
CO |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2023-10-15 |
|
| 303-880
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-881
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-882
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-883
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-884
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-885
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-886
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-887
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-888
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-889
| A |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 0 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 1 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 2 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 3 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 4 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 5 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 6 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 7 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 8 |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-889
| 9 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2007-03-19 |
|
| 303-890
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-891
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-892
| A |
Denver |
CO |
DNVRCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-893
| A |
Denver |
CO |
DNVRCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-894
| A |
Denver |
CO |
DNVRCOCHDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-895
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-895
| 0 |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2006-06-08 |
|
| 303-895
| 1 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-895
| 2 |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-04-23 |
|
| 303-895
| 3 |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
2006-04-23 |
|
| 303-895
| 4 |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2006-06-08 |
|
| 303-895
| 5 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-895
| 6 |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2006-06-08 |
|
| 303-895
| 7 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-895
| 8 |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2006-06-08 |
|
| 303-895
| 9 |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-896
| A |
Denver |
CO |
DNVRCOCPDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-897
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-898
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-899
| A |
Denver |
CO |
DNVRCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-900
| A |
Georgetown |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-900
| 0 |
Georgetown |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2010-02-19 |
|
| 303-900
| 1 |
Georgetown |
CO |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2007-03-06 |
|
| 303-900
| 2 |
Georgetown |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2008-11-20 |
|
| 303-900
| 3 |
Georgetown |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2010-04-15 |
|
| 303-900
| 4 |
Georgetown |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
2007-03-03 |
|
| 303-900
| 5 |
Georgetown |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2010-05-24 |
|
| 303-900
| 6 |
Georgetown |
CO |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2023-09-29 |
|
| 303-900
| 7 |
Georgetown |
CO |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2010-06-12 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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