303 Area Code Details

303 area code is located in the state/province of CO and has a total of 23 citie(s), 9 countie(s), and 173 zip code(s).

303 Area Code Cities

Westminster (2)Strasburg (1)
Sedalia (1)Roggen (1)
Lyons (3)Louisville (1)
Longmont (49)Littleton (25)
Keenesburg (5)Idaho Springs (3)
Hudson (6)Henderson (1)
Golden (43)Fort Lupton (12)
Englewood (19)Denver (2900)
Deer Trail (1)Charlotte (1)
Byers (1)Brighton (31)
Bennett (1)Aurora (198)
Allenspark (2)

303 Area Code Rate Centers

Strasburg Roggen
Longmont Keenesburg
Hudson Georgetown
Fortlupton Fort Lupto
Denverslvn Denver
Deer Trail Deckers
Byers Brighton
Bennett Aurora

List of Area Code and Exchange Combinations for 303 Phone Numbers