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Phone Directory 303-236 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 236-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-236 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-2360###
303-2361###
303-2362###
303-2363###
303-2364###
303-2365###
303-2366###
303-2367###
303-2368###
303-2369###