(720) 677-1520
Denver, CO
(720) 677-1520 is likely an unwanted sales call: 23 FTC complaints, 9% recorded messages, most often about dropped calls or silence (22%).
- No new complaints since Dec 23, 2025 (FTC data through Nov 13, 2026).
- More FTC complaints than 99% of the 31,610 numbers with FTC complaints in area code 720.
- No number in the 720-677 block has more complaints; 215 numbers there have FTC complaints.
Complaint history
23 FTC complaints between Mar 18, 2024 and Dec 23, 2025.
The FTC complaints came in 11 of the 22 months from Mar 2024 to Dec 2025; the busiest was Mar 2024, with 9 of 23.
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
5 of its 23 FTC complaints (22%) are 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 12 · 52%
- Dropped call or no message 5 · 22%
- Calls pretending to be government, businesses, or family and friends 4 · 17%
- Computer & technical support 2 · 9%
Who called
The number's block is assigned to Onvoy, LLC in Denver, CO.
Is it a debt collector?
Nothing says it is: none of its 23 complaints describe debt collection.
Nearby numbers in 720-677
The closest reported numbers on either side of (720) 677-1520, in number order.
When the calls came
Time of day of 21 calls; most often the 5 p.m. hour (5):
Day of the week of 23 calls; most often Friday (7):
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
- Onvoy, 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 23 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 Wisconsin (10 of 23); others in Indiana (3), Alabama (2) and Tennessee (2) and more. Statewide, Wisconsin ranks #37 of the 50 states and DC for Do Not Call complaints per resident: 37,028 in the last 12 months, 619.9 per 100,000 people. Spam calls in Wisconsin.
Where FTC complainants were located (U.S. states):
- Wisconsin 10 · 43%
- Indiana 3 · 13%
- Alabama 2 · 9%
Show 3 more states Show fewer
- Tennessee 2 · 9%
- Arizona 1 · 4%
- Michigan 1 · 4%
Complainants' cities (most common):
Adell, WI (5) · Rockport, IN (2) · Blanchard, MI (1) · Blodgett, OR (1) · Casa Grande, AZ (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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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) 677-1520
- Who called me from (720) 677-1520?
- 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 Onvoy, LLC in Denver, CO (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (720) 677-1520 a scam?
- Canadial rates it medium risk, from 23 complaints, latest Dec 23, 2025, 9% robocalls.
- Is (720) 677-1520 a debt collector or collection agency?
- Nothing says it is: none of its 23 complaints describe debt collection.
- Should I call (720) 677-1520 back?
- No. Calling back can confirm that your line is answered. If the caller claimed to be a company or agency you deal with, contact it on a number you find yourself.
- How many times has (720) 677-1520 been reported?
- 23 complaints to the U.S. FTC's Do Not Call registry between Mar 18, 2024 and Dec 23, 2025.
- What do callers from (720) 677-1520 say?
- 5 of its 23 FTC complaints (22%) are about dropped calls or silence, against 16% of the 40,642 FTC complaints about all numbers in area code 720.
- When does (720) 677-1520 call?
- In FTC complaints, the most common time was the 5 p.m. hour (5 of 21 calls with a time); the most common day was Friday (7 of 23).
Data updated: FTC complaints through Nov 13, 2026; numbering records as of Nov 3, 2026; community reports live. How this page is built.