Geographic area code
Area code 303
Serves Denver and surrounding areas in Colorado, United States.
- Local time 5:45 pm MDT
- Mountain · UTC-06:00
Where is area code 303?
At a glance
RegionColorado
Main cityDenver
Time zoneMountain
TypeGeographic
Cities & townsDenver · Aurora · Lafayette · Lakewood · Boulder · Westminster · Commerce City · Wheat Ridge
Overlays (same region, dial all 10 digits)983
Most-reported 303 numbers (30 days)
- No spam reported in this period.
Latest reports from 303
No reports yet. Be the first to report a number.
FAQ
Where is area code 303?
Area code 303 serves Denver, Aurora, Lafayette, Lakewood in Colorado (Mountain time). See the local time, map, overlays and the most-reported spam numbers in 303.
Is a call from 303 a scam?
The area code alone can’t tell you whether a call is safe, and caller ID is easy to fake. Look up the full number above to see its community reports, FTC complaints and risk score.
What time is it in area code 303?
It’s currently 5:45 pm (Mountain). Telemarketers may only call between 8am and 9pm local time.