(720) 456-3715
Denver, CO
(720) 456-3715 is likely a robocall: 4 FTC complaints, 50% recorded messages, most often about dropped calls or silence (25%).
- No new complaints since Aug 27, 2025 (FTC data through Nov 13, 2026).
- More FTC complaints than 97% of the 31,610 numbers with FTC complaints in area code 720.
Complaint history
4 FTC complaints between Apr 20, 2024 and Aug 27, 2025.
The FTC complaints came in 3 of the 17 months from Apr 2024 to Aug 2025; the busiest was Aug 2025, with 2 of 4.
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.
What callers claimed
1 of its 4 FTC complaints (25%) is about dropped calls or silence, against 16% of the 40,642 FTC complaints about all numbers in area code 720.
Complaint categories chosen by FTC complainants:
- Not specified / other 2 · 50%
- Dropped call or no message 1 · 25%
- Energy, solar & utilities 1 · 25%
Who called
The number's block is assigned to Level 3 Telecom of Colorado, LLC in Denver, CO.
Is it a debt collector?
Nothing says it is: none of its 4 complaints describe debt collection.
Nearby numbers in 720-456
The closest reported numbers on either side of (720) 456-3715, in number order.
When the calls came
Time of day of 4 calls; most often the 8 a.m. hour (2):
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 Telecom of Colorado, 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.
Most FTC complainants were in California (2 of 4); others in Indiana (1) and Pennsylvania (1). Statewide, California ranks #26 of the 50 states and DC for Do Not Call complaints per resident: 283,769 in the last 12 months, 721 per 100,000 people. Spam calls in California.
Where FTC complainants were located (U.S. states):
- California 2 · 50%
- Indiana 1 · 25%
- Pennsylvania 1 · 25%
Complainants' cities:
San Diego, CA (1) · Springfield, PA (1)
As typed on the FTC form, with spelling variants merged; complaints without a city aren't counted.
Searches on Canadial
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Report (720) 456-3715
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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) 456-3715
- Who called me from (720) 456-3715?
- No complaint names the caller; FTC complainants most often said the calls were about dropped calls or silence. The number is in a block assigned to Level 3 Telecom of Colorado, LLC in Denver, CO (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (720) 456-3715 a scam?
- Canadial rates it low risk, from 4 complaints, latest Aug 27, 2025, 50% robocalls.
- Is (720) 456-3715 a debt collector or collection agency?
- Nothing says it is: none of its 4 complaints describe debt collection.
- Should I call (720) 456-3715 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) 456-3715 been reported?
- 4 complaints to the U.S. FTC's Do Not Call registry between Apr 20, 2024 and Aug 27, 2025.
- What do callers from (720) 456-3715 say?
- 1 of its 4 FTC complaints (25%) is about dropped calls or silence, against 16% of the 40,642 FTC complaints about all numbers in area code 720.
- When does (720) 456-3715 call?
- In FTC complaints, the most common time was the 8 a.m. hour (2 of 4 calls with a time).
Data updated: FTC complaints through Nov 13, 2026; numbering records as of Nov 3, 2026; community reports live. How this page is built.