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
303-870 Denver Denver Wireless
303-345 Denver Denver Landline
303-537 Denver Denver Landline
303-832 Denver Denver Landline
303-233 Denver Jefferson Landline
303-563 Denver Denver Landline
303-934 Denver Denver Landline
303-624 Denver Denver Landline
303-610 Denver Denver Wireless
303-846 Denver Denver Landline
303-566 Denver Denver Landline
303-657 Denver Denver Landline
303-352 Denver Denver Landline
303-256 Denver Denver Landline
303-710 Fort Lupton Weld Wireless
303-200 Denver Denver Landline
303-482 Denver Denver Landline
303-547 Denver Denver Landline
303-780 Denver Denver Landline
303-434 Denver Denver Wireless
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