AreaCodesPro Directory
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- •Mile High City.
- •Original 86 Code.
Cities Served
DenverPrimary
Denver2,687,458 pop
Aurora383,496 pop
Lakewood155,608 pop
Thornton140,538 pop
Arvada122,903 pop
Boulder118,090 pop
Westminster115,535 pop
Highlands Ranch103,238 pop
Longmont101,642 pop
Map showing 23 locations served.