(312) 820-5503
(312) 820-5503 is likely a robocall: 6 FTC complaints, 50% recorded messages.
- No new complaints since Apr 8, 2024 (FTC data through Nov 13, 2026).
- More FTC complaints than 98% of the 18,591 numbers with FTC complaints in area code 312.
- Only 2 numbers in the 312-820 block have more complaints, of 237 there with FTC complaints.
Complaint history
6 FTC complaints between Mar 21, 2023 and Apr 8, 2024.
The FTC complaints came in 4 of the 14 months from Mar 2023 to Apr 2024.
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
Complaint categories chosen by FTC complainants:
- Not specified / other 6 · 100%
Who called
The number's block is assigned to Onvoy, LLC.
Is it a debt collector?
Nothing says it is: none of its 6 complaints describe debt collection.
Nearby numbers in 312-820
The closest reported numbers on either side of (312) 820-5503, in number order.
When the calls came
Time of day of 6 calls; most often the 10 a.m. hour (2):
Day of the week of 6 calls; most often Monday (3):
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)
- CHICGOZN01, IL, 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.
5 of 6 complainants (83%) have area code 312, the number's own. Scam callers often show a local-looking number (“neighbour spoofing”); a local business calling nearby customers looks the same.
Most FTC complainants were in Illinois (5 of 6); others in Vermont (1). Statewide, Illinois ranks #11 of the 50 states and DC for Do Not Call complaints per resident: 116,978 in the last 12 months, 919.7 per 100,000 people. Spam calls in Illinois.
Where FTC complainants were located (U.S. states):
- Illinois 5 · 83%
- Vermont 1 · 17%
Complainants' cities:
Oak Park, IL (2) · Northfield, VT (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 (312) 820-5503
- Who called me from (312) 820-5503?
- No complaint names the caller. The number is in a block assigned to Onvoy, LLC (rate centre CHICGOZN01, IL) (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (312) 820-5503 a scam?
- Canadial rates it low risk, from 6 complaints, latest Apr 8, 2024, 50% robocalls.
- Is (312) 820-5503 a debt collector or collection agency?
- Nothing says it is: none of its 6 complaints describe debt collection.
- Should I call (312) 820-5503 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 (312) 820-5503 been reported?
- 6 complaints to the U.S. FTC's Do Not Call registry between Mar 21, 2023 and Apr 8, 2024.
- When does (312) 820-5503 call?
- In FTC complaints, the most common time was the 10 a.m. hour (2 of 6 calls with a time); the most common day was Monday (3 of 6).
Data updated: FTC complaints through Nov 13, 2026; numbering records as of Nov 3, 2026; community reports live. How this page is built.