Area Code Lookup
What Area Code Is Denver?
4 area codes serve Denver
Denver is served by area codes 303, 720, 980, 983. It spans Colorado and North Carolina.
Area Codes Serving Denver
Frequently Asked Questions
What area code is Denver?
Denver is served by area codes 303, 720, 980, 983.
Why does Denver have multiple area codes?
As demand for phone numbers increased, NANPA added area codes through splits (dividing the region) or overlays (layering a new code over the same geography). Denver now has 4 area codes — 303 and 720 and 980 and 983 — covering the same or overlapping areas.
How do I call Denver from outside the US?
To call Denver from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-303-XXX-XXXX). The +1 is the country code for all NANPA countries.