Colorado Area Codes
Updated February 12, 2020 |
Infoplease Staff
| Area codes | Selected cities |
|---|---|
| 303, 720 | Denver, Boulder |
| 719 | Colorado Springs, Pueblo |
| 970 | Aspen, Fort Collins |
Source: North American Numbering Plan Administration. Web: www.nanpa.com .
To find phone numbers, area code information, and area code maps, see our White Pages.
| California Area Codes | Area Codes: United States, Canada, Caribbean | Connecticut Area Codes |
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