Local Calling Guide
Area code/prefix search
NPA: 303
[Rate centres in NPA 303]
[Dial plan for NPA 303]
Block: A
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 303-200
| A |
Denver |
CO |
AURRCOBUDS0 |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 303-201
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-202
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-203
| A |
Denver |
CO |
ENWDCOVF0MD |
9748 AMERICAN MESSAGING SERVICES, LLC |
656 |
|
|
|
| 303-204
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-205
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-206
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-207
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-208
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-209
| A |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
|
|
| 303-210
| A |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-212
| A |
Denver |
CO |
ENWDCOVF0MD |
9748 AMERICAN MESSAGING SERVICES, LLC |
656 |
|
|
|
| 303-213
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-214
| A |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
|
|
| 303-215
| A |
Denver |
CO |
GLDNCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-216
| A |
Denver |
CO |
GLDNCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-217
| A |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
|
|
| 303-218
| A |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
|
|
| 303-219
| A |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
|
|
| 303-220
| A |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-221
| A |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-222
| A |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
|
|
| 303-223
| A |
Denver |
CO |
|
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-224
| A |
Denver |
CO |
DNVRCODCDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-225
| A |
Denver |
CO |
|
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-226
| A |
Denver |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-227
| A |
Denver |
CO |
DNVRCONEDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-228
| A |
Denver |
CO |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 303-229
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-230
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-231
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-232
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-233
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-234
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-235
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-236
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-237
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-238
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-239
| A |
Denver |
CO |
LKWDCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-240
| A |
Denver |
CO |
DNVRCOMAXTZ |
6630 USA MOBILITY WIRELESS, INC. |
656 |
|
|
|
| 303-241
| A |
Denver |
CO |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
|
|
| 303-242
| A |
Denver |
CO |
DNVRCO37DS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
656 |
|
|
|
| 303-243
| A |
Denver |
CO |
DNVRCOMA47Z |
6874 N.E. COLORADO CELLULAR, INC. |
656 |
|
|
|
| 303-244
| A |
Denver |
CO |
DNVRCOCPDS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-245
| A |
Denver |
CO |
BLDRCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-246
| A |
Denver |
CO |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
|
|
| 303-247
| A |
Denver |
CO |
BLDRCOMADS0 |
9636 QWEST CORPORATION |
656 |
|
|
|
| 303-248
| A |
Denver |
CO |
AURRCOBUDS0 |
7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
656 |
|
|
|
| 303-249
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
| 303-250
| A |
Denver |
CO |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
|
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>
Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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