| General Information | |
|---|---|
| Country | United States |
| State/Province | Colorado |
| Major City | Denver |
| Time Zone | Mountain (UTC-07:00) |
| Current Local Time | 05:31 |
| Prefix | County | Primary City |
|---|---|---|
| 303-454 | Denver | Denver |
| 303-455 | Denver | Denver |
| 303-456 | Denver | Denver |
| 303-457 | Adams | Denver |
| 303-458 | Denver | Denver |
| 303-459 | Denver | Denver |
| 303-460 | Adams | Denver |
| 303-461 | Denver | Denver |
| 303-462 | Jefferson | Denver |
| 303-463 | Denver | Denver |
| 303-464 | Adams | Denver |
| 303-465 | Adams | Denver |
| 303-466 | Adams | Denver |
| 303-467 | Denver | Denver |
| 303-468 | Denver | Denver |
| 303-469 | Adams | Denver |
| 303-470 | Arapahoe | Littleton |
| 303-471 | Arapahoe | Littleton |
| 303-472 | Denver | Denver |
| 303-473 | Denver | Denver |
| 303-474 | Denver | Denver |
| 303-475 | Denver | Denver |
| 303-476 | Denver | Denver |
| 303-477 | Denver | Denver |
| 303-478 | Denver | Denver |
| 303-479 | Adams | Brighton |
| 303-480 | Denver | Denver |
| 303-481 | Denver | Denver |
| 303-482 | Denver | Denver |
| 303-483 | Denver | Denver |
| 303-484 | Denver | Denver |
| 303-485 | Boulder | Longmont |
| 303-486 | Denver | Denver |
| 303-487 | Denver | Denver |
| 303-488 | Denver | Denver |
| 303-489 | Denver | Denver |
| 303-490 | Denver | Denver |
| 303-491 | Denver | Denver |
| 303-492 | Denver | Denver |
| 303-493 | Denver | Denver |
| 303-494 | Denver | Denver |
| 303-495 | Denver | Denver |
| 303-496 | Denver | Denver |
| 303-497 | Denver | Denver |
| 303-498 | Weld | Brighton |
| 303-499 | Denver | Denver |
| 303-500 | Weld | Hudson |
| 303-501 | Denver | Denver |
| 303-502 | Weld | Fort Lupton |
| 303-503 | Denver | Denver |