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
303-301	Denver	Landline	Active
303-302	Jefferson	Landline	Active
303-304	Weld	Cell Number	Active
303-305	Denver	Landline	Active
303-306	Arapahoe	Landline	Active
303-307	Denver	Landline	Active
303-308	Denver	Landline	Active
303-309	Jefferson	Landline	Active
303-310	Jefferson	Cell Number	Active
303-312	Denver	Landline	Active
303-313	Denver	Landline	Active
303-314	Denver	Landline	Active
303-315	Denver	Landline	Active
303-316	Jefferson	Landline	Active
303-317	Adams	Landline	Active
303-318	Denver	Landline	Active
303-319	Jefferson	Cell Number	Active
303-320	Denver	Landline	Active
303-321	Denver	Landline	Active
303-322	Denver	Landline	Active

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