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Phone Directory 303-430 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 430-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-430 Denver, CO Qwest Corporation Adams Landline 02/04/1994

Other Series For Prefixes

303-4300###
303-4301###
303-4302###
303-4303###
303-4304###
303-4305###
303-4306###
303-4307###
303-4308###
303-4309###