(339) 255-3963
(339) 255-3963 is likely an unwanted sales call: 3 FTC complaints and 1 FCC complaint, recorded messages in 0% of the FTC complaints, mostly about medical and prescription offers.
- No new complaints since Dec 11, 2023 (FTC data through Nov 13, 2026).
- More FTC complaints than 93% of the 8,531 numbers with FTC complaints in area code 339.
- Only 3 numbers in the 339-255 block have more complaints, of 120 there with FTC complaints.
Complaint history
3 FTC complaints between Dec 7, 2022 and Jan 23, 2023.
The FTC complaints came in every month from Dec 2022 to Jan 2023; the busiest was Dec 2022, with 2 of 3.
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 11, 2023; all gave it as the number to call back rather than the caller ID.
The complainant heard a live person. They filed it as unwanted calls (1). The calls were about health insurance (1). Complainants were in New Hampshire (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
3 of its 3 FTC complaints (100%) are about medical and prescription offers, against 3% of the 11,105 FTC complaints about all numbers in area code 339.
Complaint categories chosen by FTC complainants:
- Medical & prescriptions 3 · 100%
Who called
The number's block is assigned to Onvoy, LLC.
Is it a debt collector?
Nothing says it is: none of its 4 complaints describe debt collection.
Part of a group of similar numbers
(339) 255-3963 is one of 5 numbers in 339-255 first reported to the FTC for “Medical & prescriptions” calls between Dec 7, 2022 and Dec 8, 2022, 9 complaints in all; most from Massachusetts (44%), California (22%), Florida (22%).
Numbers from one block reported for the same thing within days of each other are rarely chance; they usually mean one operation cycling through numbers. How groups are found.
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Nearby numbers in 339-255
The closest reported numbers on either side of (339) 255-3963, in number order.
When the calls came
Time of day of 3 calls:
Day of the week of 3 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
- Rate centre (NANPA abbreviation)
- WEYMOUTH, MA, 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 3 complainants have area code 339, the number's own. The calls reached people elsewhere, so this isn't a local caller to them.
FTC complainants were in California (1), Florida (1) and Massachusetts (1).
Where FTC complainants were located (U.S. states):
- California 1 · 33%
- Florida 1 · 33%
- Massachusetts 1 · 33%
Complainants' cities:
El Cajon, CA (1) · Lakeville, MA (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 (339) 255-3963
- Who called me from (339) 255-3963?
- 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 (rate centre WEYMOUTH, MA) (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ. It's one of 5 numbers in the same block first reported for the same kind of call within days of each other, likely one operation.
- Is (339) 255-3963 a scam?
- Canadial rates it low risk, from 4 complaints, latest Dec 11, 2023, robocalls in 0% of the FTC complaints.
- Is (339) 255-3963 a debt collector or collection agency?
- Nothing says it is: none of its 4 complaints describe debt collection.
- Should I call (339) 255-3963 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 (339) 255-3963 been reported?
- 3 complaints to the U.S. FTC's Do Not Call registry between Dec 7, 2022 and Jan 23, 2023 and 1 complaint to the U.S. FCC on Dec 11, 2023.
- What do callers from (339) 255-3963 say?
- 3 of its 3 FTC complaints (100%) are about medical and prescription offers, against 3% of the 11,105 FTC complaints about all numbers in area code 339.
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.