(303) 962-3643
Denver, CO
(303) 962-3643 is reported as unwanted: 2 FTC complaints and 1 FCC complaint, mostly about medical and prescription offers.
- No new complaints since Mar 9, 2026 (FTC data through Nov 13, 2026).
- More FTC complaints than 89% of the 26,440 numbers with FTC complaints in area code 303.
- Only 2 numbers in the 303-962 block have more complaints, of 165 there with FTC complaints.
Complaint history
2 FTC complaints between Jun 22, 2023 and Mar 9, 2026.
The FTC complaints came in 2 of the 34 months from Jun 2023 to Mar 2026.
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 Mar 9, 2026.
The complainant heard a recorded message. They filed it as unwanted calls (1). The calls were about medicare medicaid (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 medical and prescription offers, against 10% of the 31,961 FTC complaints about all numbers in area code 303.
Complaint categories chosen by FTC complainants:
- Medical & prescriptions 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 303-962
165 numbers in 303-962 have 192 FTC complaints between them (56% robocalls), 2 of them about (303) 962-3643. The commonest categories in the block: Dropped call or no message (29%), Medical & prescriptions (9%).
The closest reported numbers on either side of (303) 962-3643, 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.
FTC complainants were in Colorado (1) and Ohio (1).
Where FTC complainants were located (U.S. states):
- Colorado 1 · 50%
- Ohio 1 · 50%
Complainants' cities:
Cincinnati, OH (1) · Longmont, 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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Report (303) 962-3643
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Recent community reports
No community reports yet. Be the first to describe this call.
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 (303) 962-3643
- Who called me from (303) 962-3643?
- No complaint names the caller; FTC complainants most often said the calls were about medical and prescription offers. 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 (303) 962-3643 a scam?
- Canadial rates it medium risk, from 3 complaints, latest Mar 9, 2026.
- Is (303) 962-3643 a debt collector or collection agency?
- Nothing says it is: none of its 3 complaints describe debt collection.
- Should I call (303) 962-3643 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 (303) 962-3643 been reported?
- 2 complaints to the U.S. FTC's Do Not Call registry between Jun 22, 2023 and Mar 9, 2026 and 1 complaint to the U.S. FCC on Mar 9, 2026.
- What do callers from (303) 962-3643 say?
- 1 of its 2 FTC complaints (50%) is about medical and prescription offers, against 10% of the 31,961 FTC complaints about all numbers in area code 303.
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.