(720) 457-5501
Denver, CO
(720) 457-5501 is likely a robocall: 4 FTC complaints and 3 FCC complaints, recorded messages in 50% of the FTC complaints.
- No new complaints since Nov 17, 2023 (FTC data through Nov 13, 2026).
- More FTC complaints than 97% of the 31,610 numbers with FTC complaints in area code 720.
- No number in the 720-457 block has more complaints; 24 numbers there have FTC complaints.
Complaint history
4 FTC complaints between Nov 12, 2023 and Nov 17, 2023.
All 4 FTC complaints are about calls in Nov 2023.
FTC complaints are filed by consumers with the U.S. Federal Trade Commission's Do Not Call registry; they aren't verified by the FTC or by us.
Complaints to the FCC
3 complaints to the U.S. Federal Communications Commission between Apr 25, 2018 and May 5, 2018; 1 gave it as the number to call back rather than the caller ID.
Of the 3 complainants, 1 got a call that hung up or stayed silent, 1 heard a live person and 1 heard a recorded message. They filed them as unwanted calls (3). Complainants were in Massachusetts (1), Ohio (1) and Pennsylvania (1).
Source: FCC Consumer Help Center, Consumer Complaints Data (public domain), complaints about unwanted calls, telemarketing and robocalls. The FCC doesn't verify the facts alleged in complaints, and neither do we.
What callers claimed
Complaint categories chosen by FTC complainants:
- Not specified / other 4 · 100%
Who called
The number's block is assigned to Level 3 Communications, LLC in Denver, CO.
Is it a debt collector?
Nothing says it is: none of its 7 complaints describe debt collection.
Nearby numbers in 720-457
The closest reported numbers on either side of (720) 457-5501, in number order.
When the calls came
Day of the week of 4 calls:
The date and time of the call as complainants entered them on the FTC form; the time zone isn't recorded. Times entered as exactly midnight or noon are left out (they're usually the form's default).
Location
- Location of the number block
- Denver, CO, USA
- Block assigned to
- Level 3 Communications, LLC
From the North American Numbering Plan Administrator (Nov 3, 2026). This is who the number block was assigned to; numbers can be moved between carriers, and caller IDs can be faked.
None of 4 complainants have area code 720, the number's own. The calls reached people elsewhere, so this isn't a local caller to them.
All 4 FTC complainants were in Colorado. Statewide, Colorado ranks #7 of the 50 states and DC for Do Not Call complaints per resident: 59,905 in the last 12 months, 996.3 per 100,000 people. Spam calls in Colorado.
Where FTC complainants were located (U.S. states):
- Colorado 4 · 100%
Searches on Canadial
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Recent community reports
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What to do
- Don't share personal or banking details, or pay anyone, on a call you didn't expect. Hang up and call the organization back on a number you find yourself.
- Block it from your recent calls (iPhone: ⓘ, then “Block this Caller”; Android: long-press, then “Block”).
- Report fraud to the Canadian Anti-Fraud Centre (1-888-495-8501).
- Report telemarketing if you're registered and still got the call: to the National Do Not Call List.
- A collector calling? How to check a collection agency in your province.
- Report fraud to the FTC.
- Report telemarketing if you're registered and still got the call: to the National Do Not Call Registry.
- A collector calling? See the FTC's guide to your rights.
- Report fraud: in the U.S. to the FTC; in Canada to the Canadian Anti-Fraud Centre (1-888-495-8501).
- Report telemarketing if you're registered and still got the call: in the U.S. to the National Do Not Call Registry; in Canada to the National Do Not Call List.
- A collector calling? In the U.S., see the FTC's guide to your rights; in Canada, how to check a collection agency in your province.
Questions about (720) 457-5501
- Who called me from (720) 457-5501?
- No complaint names the caller. The number is in a block assigned to Level 3 Communications, LLC in Denver, CO (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (720) 457-5501 a scam?
- Canadial rates it low risk, from 7 complaints, latest Nov 17, 2023, robocalls in 50% of the FTC complaints.
- Is (720) 457-5501 a debt collector or collection agency?
- Nothing says it is: none of its 7 complaints describe debt collection.
- Should I call (720) 457-5501 back?
- Be careful. If you don't recognize it, let it go to voicemail: a legitimate caller will leave a message, and you can reach any real organization on a number you look up yourself.
- How many times has (720) 457-5501 been reported?
- 4 complaints to the U.S. FTC's Do Not Call registry between Nov 12, 2023 and Nov 17, 2023 and 3 complaints to the U.S. FCC between Apr 25, 2018 and May 5, 2018.
Data updated: FTC complaints through Nov 13, 2026; FCC complaints refreshed daily; numbering records as of Nov 3, 2026; community reports live. How this page is built.