(720) 623-0636
Denver, CO
(720) 623-0636 is reported as unwanted: 2 FTC complaints and 1 FCC complaint, mostly about home improvement and cleaning.
- No new complaints since Oct 20, 2023 (FTC data through Nov 13, 2026).
- More FTC complaints than 85% of the 31,610 numbers with FTC complaints in area code 720.
- No number in the 720-623 block has more complaints; 45 numbers there have FTC complaints.
Complaint history
2 FTC complaints between Feb 15, 2023 and Oct 20, 2023.
The FTC complaints came in 2 of the 9 months from Feb 2023 to Oct 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
1 complaint to the U.S. Federal Communications Commission on Dec 2, 2019.
The complainant heard a recorded message. They filed it as unwanted calls (1). Complainants were in Colorado (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
1 of its 2 FTC complaints (50%) is about home improvement and cleaning, against 4% of the 40,642 FTC complaints about all numbers in area code 720.
Complaint categories chosen by FTC complainants:
- Home improvement & cleaning 1 · 50%
- Not specified / other 1 · 50%
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 3 complaints describe debt collection.
Nearby numbers in 720-623
45 numbers in 720-623 have 50 FTC complaints between them (44% robocalls), 2 of them about (720) 623-0636. The commonest categories in the block: Dropped call or no message (16%), Medical & prescriptions (14%), Calls pretending to be government, businesses, or family and friends (10%).
The closest reported numbers on either side of (720) 623-0636, in number order.
When the calls came
Time of day of 2 calls:
Day of the week of 2 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
- 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.
Both 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 2 · 100%
Complainants' cities:
Parker, CO (1) · Rye, CO (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) 623-0636
- Who called me from (720) 623-0636?
- No complaint names the caller; FTC complainants most often said the calls were about home improvement and cleaning. 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) 623-0636 a scam?
- Canadial rates it low risk, from 3 complaints, latest Oct 20, 2023.
- Is (720) 623-0636 a debt collector or collection agency?
- Nothing says it is: none of its 3 complaints describe debt collection.
- Should I call (720) 623-0636 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) 623-0636 been reported?
- 2 complaints to the U.S. FTC's Do Not Call registry between Feb 15, 2023 and Oct 20, 2023 and 1 complaint to the U.S. FCC on Dec 2, 2019.
- What do callers from (720) 623-0636 say?
- 1 of its 2 FTC complaints (50%) is about home improvement and cleaning, against 4% of the 40,642 FTC complaints about all numbers in area code 720.
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.