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Phone Directory 303-637 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 637-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-637 Brighton, CO Qwest Corporation Adams Landline 02/04/1994

Other Series For Prefixes

303-6370###
303-6371###
303-6372###
303-6373###
303-6374###
303-6375###
303-6376###
303-6377###
303-6378###
303-6379###