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Phone Directory 303-235 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 235-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-235 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-2350###
303-2351###
303-2352###
303-2353###
303-2354###
303-2355###
303-2356###
303-2357###
303-2358###
303-2359###