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Phone Directory 303-923 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 923-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-923 Denver, CO Icg Telecom Group Denver Landline 05/18/1998

Other Series For Prefixes

303-9230###
303-9231###
303-9232###
303-9233###
303-9234###
303-9235###
303-9236###
303-9237###
303-9238###
303-9239###