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
303-525	Jefferson	Cell Number	Active
303-526	Jefferson	Landline	Active
303-527	Jefferson	Landline	Active
303-528	Jefferson	Cell Number	Active
303-529	Jefferson	Cell Number	Active
303-530	Jefferson	Landline	Active
303-531	Denver	Landline	Active
303-532	Boulder	Landline	Active
303-533	Adams	Landline	Active
303-534	Denver	Landline	Active
303-535	Weld	Landline	Active
303-536	Weld	Landline	Active
303-537	Arapahoe	Landline	Active
303-538	Adams	Landline	Active
303-539	Jefferson	Landline	Active
303-540	Jefferson	Cell Number	Active
303-541	Jefferson	Landline	Active
303-542	Denver	Landline	Active
303-543	Jefferson	Landline	Active
303-544	Jefferson	Landline	Active

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