Area Code 303

All Information about Area Code 303
General Information about Area Code 303
Country United States
State / Province / Territory Colorado
Major City Denver
Time Zone Mountain (UTC-07:00)

Active Prefixes in Area Code 303

Prefix Primary City County Phone Type
303-422 Denver Denver Landline
303-842 Denver Denver Wireless
303-866 Denver Denver Landline
303-506 Fort Lupton Weld Wireless
303-953 Denver Denver Landline
303-730 Denver Denver Landline
303-308 Denver Denver Landline
303-805 Denver Denver Landline
303-554 Denver Denver Landline
303-620 Denver Denver Landline
303-589 Denver Denver Wireless
303-299 Denver Denver Landline
303-939 Denver Denver Landline
303-840 Denver Denver Landline
303-680 Denver Denver Landline
303-806 Denver Denver Landline
303-401 Denver Denver Landline
303-465 Denver Adams Landline
303-522 Aurora Arapahoe Wireless
303-881 Denver Denver Wireless
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