Area Code 303

Area Code 303 information.

Area Code 303 Details
Country	United States
State/Province	Colorado
Major City	Denver
Time Zone	Mountain (UTC-07:00)

Area Code 303 Prefixes

Prefix	County	Phone Type	Status
303-729	Denver	Landline	Active
303-730	Jefferson	Landline	Active
303-731	Denver	Landline	Active
303-732	Weld	Landline	Active
303-733	Denver	Landline	Active
303-734	Jefferson	Landline	Active
303-735	Jefferson	Landline	Active
303-736	Arapahoe	Landline	Active
303-737	Denver	Landline	Active
303-738	Jefferson	Landline	Active
303-739	Arapahoe	Landline	Active
303-740	Denver	Landline	Active
303-741	Denver	Landline	Active
303-742	Denver	Landline	Active
303-743	Arapahoe	Landline	Active
303-744	Denver	Landline	Active
303-745	Arapahoe	Landline	Active
303-746	Boulder	Cell Number	Active
303-747	Boulder	Landline	Active
303-748	Jefferson	Cell Number	Active

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