199 different phone numbers from 231-251-1000 to 231-251-1999 have been reported to the FTC, with 357 complaints in total, 5 of them in the last 90 days. No single number in the block has more than 12 complaints, so looking up one number on its own understates how often this block appears in reports. 59% of the complaints describe "Reducing your debt (credit cards, mortgage, student loans)". Reports came from 41 states, most often California, Texas and Michigan. The earliest complaint on record is from January 25, 2024 and the most recent from September 30, 2026.
Complaints are filed by consumers with the FTC and are not verified. Callers often spoof numbers, so a number listed here may have been faked by a caller rather than used by the person or business it is assigned to. Many complaints spread across consecutive numbers can point to one calling operation rotating through a block, but this page does not identify who placed the calls. How we source this data.
| Complaint type | Reports | Share |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 211 | 59% |
| Other | 93 | 26% |
| No subject provided | 24 | 7% |
| Calls pretending to be government, businesses, or family and friends | 13 | 4% |
| Dropped call or no message | 12 | 3% |
| Warranties & protection plans | 2 | 1% |
| Charities | 1 | 0% |
| Medical & prescriptions | 1 | 0% |
| California | 52 |
| Texas | 40 |
| Michigan | 39 |
| New York | 33 |
| Florida | 26 |
| Illinois | 14 |
Sorted by number of complaints.