State
Colorado
Major City
Denver
Time Zone
America/Denver
Current Time
9:09 PM
303 Area Code
Reverse Phone Lookup
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Area Code info
Where is Area Code 303?
The 303 area code is located in the state of Colorado . 303 is one of the 357 three-digit telephone area codes in the USA. It covers roughly 2,551,891 unique phone numbers and 5,839,926 individuals near the cities of Denver, Arvada, Aurora in our database.
Cities in the 303 Area Code
The most populous cities in area code 303 are
Denver
713.3kAurora
393.3kThornton
143.3kArvada
121.7k Other cities in area code 303 include
Longmont
Littleton
Brighton
Englewood
Louisville
Golden
Lone Tree
Evergreen
Fort Lupton
Strasburg
Bennett
Lyons
Hudson
Idaho Springs
Keenesburg
Byers
Deer Trail
Allenspark
Orchard
Sedalia
303 Area Code Time Zone
This time zone is known as the Mountain Standard Time (MST). The current time in this time zone is 9:09 PM on May 19, 2025.
In Service Date: 1947
303 Area Code Demographics
Statistics based on US Census data for the 303 area code
37.7
Median Age
$89.3k
Median Income
$531.1k
Median Home Value
5.8M
Total People
Nearby Area Codes
Phone Numbers
2,517,729
State
Texas
Major City
Houston
Phone Numbers
2,284,194
State
Maryland
Major City
Germantown
Phone Numbers
1,028,811
State
Delaware
Major City
Wilmington
Phone Numbers
1,482,077
State
West Virginia
Major City
Charleston
Phone Numbers
2,416,231
State
Florida
Major City
Miami
Phone Numbers
1,086,052
State
Colorado
Major City
Colorado Springs
Phone Numbers
941,748
State
Colorado
Major City
Denver
Phone Numbers
1,114,491
State
Colorado
Major City
Fort Collins
Reverse Phone Lookup 303-XXX-XXXX
Find out who the 303 phone number is registered under. Our free reverse phone lookup allows you to search records associated with a landline or cell phone number to help quickly identify who’s calling or texting you.
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Browse Phone Number Prefixes in the 303 Area Code
Landlines
724Wireless Prefixes
74Carriers
35Countries
8ZIP Codes
31Prefix
(303) 644County
AdamsCity
BennettCarrier
Eastern Slope Rural Telephone AssociationPrefix
(303) 769County
ArapahoeCity
Deer TrailCarrier
Bijou Telephone Cooperative AssociationPrefix
(303) 822County
ArapahoeCity
ByersCarrier
Bijou Telephone Cooperative Association