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Phone Directory 303-448 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-448 Denver, CO Qwest Corporation Jefferson Landline 07/01/1996

Other Series For Prefixes

303-4480###
303-4481###
303-4482###
303-4483###
303-4484###
303-4485###
303-4486###
303-4487###
303-4488###
303-4489###