Illinois
Area code 331 reported phone numbers
Area code 331 is assigned to Illinois, with 224 prefixes in use held by 25 carriers and rate centers such as Aurora, Naperville, Downersgrv, St Charles, Lombard, Lemont. Consumers have filed 800 complaints about 473 numbers in this area code, and 3 of those numbers have enough reports to get their own page.
473Reported numbers
800Complaints
548Complaints, last 30 days
Oct 21, 2026Last complaint
Most reported 331 numbers in the last 30 days
| Phone number | Last 30 days | Most reported topic |
|---|---|---|
| (331) 888-1940 | 260 | Debt reduction |
| (331) 212-9368 | 2 | Other |
| (331) 215-2710 | 2 | Impostor calls |
| (331) 225-8642 | 2 | Other |
| (331) 296-6613 | 2 | Other |
| (331) 297-7591 | 2 | Debt reduction |
| (331) 529-9079 | 2 | Dropped call or no message |
| (331) 777-1130 | 2 | Debt reduction |
| (331) 900-2561 | 2 | Debt reduction |
| (331) 210-9906 | 1 | Not specified |
| (331) 481-8189 | 1 | Medical & prescriptions |
| (331) 253-6987 | 1 | Not specified |
| (331) 286-5163 | 1 | Not specified |
| (331) 286-5259 | 1 | Not specified |
| (331) 356-7810 | 1 | Debt reduction |
Scammers often fake caller IDs with local area codes (“neighbor spoofing”) so their calls look familiar. A local number on this list may be spoofed rather than owned by the caller.
All 331 numbers with repeated complaints
| Phone number | Complaints | Topic | Last reported |
|---|---|---|---|
| (331) 888-1940 | 260 | Debt reduction | Oct 20, 2026 |
| (331) 888-1773 | 47 | Debt reduction | Sep 16, 2026 |
| (331) 310-1076 | 2 | Not specified | Mar 6, 2025 |