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Phone Directory 303-663 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-663 Denver, CO Qwest Corporation Jefferson Landline 01/25/1998

Other Series For Prefixes

303-6630###
303-6631###
303-6632###
303-6633###
303-6634###
303-6635###
303-6636###
303-6637###
303-6638###
303-6639###