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Phone Directory 303-373 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-373 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-3730###
303-3731###
303-3732###
303-3733###
303-3734###
303-3735###
303-3736###
303-3737###
303-3738###
303-3739###