Reported (303) XXX-XXXX phone numbers lookup
Browse phone numbers associated with area code 303 in Colorado (CO), United States. Our database currently includes 10,000 numbers from this range, of which a total of 76 numbers have been recently reported. The latest report was submitted on .
Find Entries for 303 area code:
Latest Entries for 303 area code:
(303) 535-2362
Received a suspicious call from 303-535-2362 with no clear scam details provided.
(303) 535-2371
This number called and then disconnected or left no voicemail, making it hard to tell what it was about.
(303) 535-2373
Received unwanted calls from 303-535-2373 with no clear scam details described.
(303) 535-2363
Received a call from 303-535-2363 with no clear scam details, and it came across as just generic nuisance calling.
(303) 535-2375
Called about an unspecified matter and left no clear scam details, according to the complaint.
(303) 276-9512
Received an unwanted call from 303-276-9512 with no clear reason given, just a generic outreach that led to no actionable follow-up.
(303) 316-1044
Received an unsolicited call from 303-316-1044 about something unspecified, and it didn’t connect to any clear message.
(303) 952-8472
Received an unsolicited call from 303-952-8472 with no clear scam details given.
(303) 535-2361
A caller reached out to 303-535-2361 with no clear scam details, but the contact was reported as unwanted.
(303) 718-5198
A robocall came through as spam on the 303-718-5198 number.
(303) 751-9740
A spam robocall came in on 303-751-9740 and left a prerecorded message.
(303) 800-5929
An automated robocall on 303-800-5929 was reported as spam.
(303) 265-8641
Robocall spam came from 303-265-8641, but the message details weren’t given in the complaint.
(303) 371-1738
Robocall spam came through on 303-371-1738, and it was reported as unwanted spam.
(303) 827-0922
A spam robocall came in on 303-827-0922, reported as unwanted automated calling.
About Area Code 303
The area code 303 covers the Denver area and other parts of the Front Range metropolitan area such as Boulder. It uses the Mountain Time zone and is part of the numbering plan territory of other area codes used in the Denver area.
- Location: Colorado (CO), United States
- Time Zone: America/Denver
- Introduced: 1947
- Overlay Code: None listed
- Service Type: Mixed (Landline, Mobile)
- Major Carriers: Qwest Corp., Verizon, USA Mobility, Cingular
- Numbers in Our Database: Over 10 thousand phone records.
Area Code 303 History and Coverage
The code 303 was assigned back in 1947 and was an original North American area code, covering the whole state of Colorado. At that time, there was only one statewide code in the state, as the population was much smaller and there was not as developed a telephone network. Growth along the Front Range led to the need for more numberings in the central part of Colorado due to residential development, business activity, and government functions.
The first geographic change occurred in 1988, when a new area code 719 was created by splitting the region into southern and eastern parts of Colorado. Another split was made in 1995 when the code 970 became the code for northern and western Colorado, excluding parts of the Front Range metropolitan corridor. As a result, the code 303 became an area code for the central part of Colorado.
The demand for numbers rose even after the creation of the code 970; as a consequence, the 720 overlay appeared in 1998 and the 983 overlay was created for the same numbering region. The territory left to 303 covers the Front Range at the foothills, at the place where plains and Rocky Mountain urban corridor meet.
Cities covering area code 303:
- Denver
- Aurora
- Golden
- Brighton
- Fort Lupton
- Littleton
- Keenesburg
- Longmont
- Hudson
- Louisville
- Idaho Springs
- Strasburg
- Bennett
- Sedalia
- Deer Trail
- Allenspark
- Englewood
- Byers
- Lyons
- Roggen