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Phone Directory 303-772 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 772-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-772 Longmont, CO Qwest Corporation Boulder Landline 02/04/1994

Other Series For Prefixes

303-7720###
303-7721###
303-7722###
303-7723###
303-7724###
303-7725###
303-7726###
303-7727###
303-7728###
303-7729###