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
303-393 Denver Denver Landline
303-500 Hudson Weld Landline
303-904 Littleton Jefferson Landline
303-955 Denver Denver Landline
303-699 Denver Denver Landline
303-452 Denver Adams Landline
303-246 Aurora Arapahoe Wireless
303-272 Denver Adams Landline
303-338 Denver Denver Landline
303-486 Denver Denver Landline
303-877 Denver Denver Wireless
303-991 Denver Denver Landline
303-298 Denver Denver Landline
303-988 Denver Jefferson Landline
303-496 Denver Denver Landline
303-940 Denver Denver Landline
303-221 Denver Denver Landline
303-351 Keenesburg Weld Landline
303-398 Denver Denver Landline
303-656 Denver Denver Wireless
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