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Area code 303 serves the Denver Bay Area in Colorado, covering cities like Denver, Brighton, Fort Lupton, Littleton, Longmont, Idaho Springs and Lyons. Use this directory to search prefixes, identify carriers, and check if numbers in the 303 area have been reported as spam or fraud.
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Area code 303 is a telephone area code in the North American Numbering Plan (NANP) for the state of Colorado. It covers the Denver metropolitan area, including the cities of Denver, Aurora, Lakewood, Littleton, and Englewood.
Denver
Brighton
Fort Lupton
Littleton
Longmont
Idaho Springs
Lyons
Area code 303 is an important economic center in Colorado. It is home to many major corporations, including the headquarters of Frontier Airlines, Molson Coors Brewing Company, and DaVita. It is also home to the Denver International Airport, one of the busiest airports in the United States.
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3,016,409
Total Population
50.5%
Male Population
49.5%
Female Population
$55,041
Per Capita Income
2.4
Avg. Household Size
1,726,832
Labour Force
70.2%
Labour Force %
4.5%
Unemployment Rate
781 Entries Found
Prefixes
Carrier Name
Action
Recently searched numbers
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(303) 219 - 7406
We just got a call from this number.
The caller left no voice message.
(303) 222 - 5423
no one responded.
"suspicious activity with your SS#"Spoofed number scammer caller
(303) 351 - 7447
left no msg.
(303) 581 - 3911
I said Hello once. Nothing but silence on the other end until they hung up.
(303) 692 - 2728
Caller ID says CO ST GVT. Message left on answering machine. Female voice with an unfamiliar accent says that she is calling for the Colorado Department of Health to let me know that I am on a list of people who need to get a flu shot. The rest of the lengthy message, including what sounds like a number for a return call, is basically unintelligible.
(303) 715 - 1133
Probably spoofing as Silent hang up call
This number keeps calling me
This number is calling my house.
Did you receive any dangerous, unwanted or spam call?