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Phone Directory 303-275 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 275-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-275 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-2750###
303-2751###
303-2752###
303-2753###
303-2754###
303-2755###
303-2756###
303-2757###
303-2758###
303-2759###