720 – Colorado Area Codes
Number structure
| +1 | 720 | 283 344 348 406 424 494 ... | •••• |
| United States | Colorado | Code of City | Number |
List of area codes
| City | Area Code |
|---|---|
| Aurora | 720-535, 720-748, 720-777, 720-848, 720-859, 720-870 |
| Boulder | 720-406, 720-565 |
| Brighton | 720-685 |
| Broomfield | 720-887 |
| Castle Rock | 720-733 |
| Denver | 720-424, 720-570, 720-855, 720-865, 720-904, 720-913, 720-932, 720-941 |
| Highlands Ranch | 720-344, 720-348 |
| Littleton | 720-283, 720-922, 720-981 |
| Longmont | 720-494 |
| Parker | 720-842, 720-851 |
Local time in Colorado
| Timezone | GMT | Time |
|---|---|---|
| America/Denver | -07:00 | [loading...] |
Map of Colorado
Other area codes in United States
Area Codes Search Notes
Fixed phone numbers in the United States, state Colorado (area code 720) are comprised of a single country code (+1), a 3 digit area code, a 3 digit local office code (or region code), and a 4 digit line code. Making a call with the wrong country, area, or region code can be costly. Browse our sites area and region codes by state and city to ensure you have the correct information for your calls. Each states page contains a list of the cities within that state and the numbers of that area. Also available are local times. So you don’t have to worry about calling too late or early again.
Getting calls from someone and want to know what state they are in? Try our reverse phone number lookup to find their location, it even works with mobile, toll free and other numbers. Just enter the number into the search field for instant results.
