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Phone Directory 303-343 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 343-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-343 Aurora, CO Qwest Corporation Arapahoe Landline 02/04/1994

Other Series For Prefixes

303-3430###
303-3431###
303-3432###
303-3433###
303-3434###
303-3435###
303-3436###
303-3437###
303-3438###
303-3439###