Who called me from a 231 number?
Consumers named 999 different 231 numbers in 1,064 Do Not Call complaints filed with the US Federal Trade Commission between Apr 8, 2026 and Sep 14, 2026.
Numbers reported
999
Complaints
1,064
Recorded / robocall
73%
Most common
Other
Most-reported 231 numbers
- (231) 571-0080Reducing your debt (credit cards, mortgage, student loans)6
- (231) 740-0467Reducing your debt (credit cards, mortgage, student loans)4
- (231) 434-0602Reducing your debt (credit cards, mortgage, student loans)3
- (231) 434-0922Reducing your debt (credit cards, mortgage, student loans)3
- (231) 465-6804Reducing your debt (credit cards, mortgage, student loans)3
- (231) 655-0099Reducing your debt (credit cards, mortgage, student loans)3
- (231) 875-6531Other3
- (231) 216-0335Calls pretending to be government, businesses, or family and friends2
- (231) 216-1433Other2
- (231) 244-2880No Subject Provided2
- (231) 246-1591Warranties & protection plans2
- (231) 268-0407Calls pretending to be government, businesses, or family and friends2
- (231) 278-6502Dropped call or no message2
- (231) 321-0372Calls pretending to be government, businesses, or family and friends2
- (231) 374-6219Calls pretending to be government, businesses, or family and friends2
- (231) 386-0292No Subject Provided2
- (231) 386-0598Reducing your debt (credit cards, mortgage, student loans)2
- (231) 396-6185Reducing your debt (credit cards, mortgage, student loans)2
- (231) 422-0221Other2
- (231) 427-9844Other2
- (231) 427-9916No Subject Provided2
- (231) 434-0618Other2
- (231) 434-0709Other2
- (231) 434-0846Reducing your debt (credit cards, mortgage, student loans)2
- (231) 455-3320Calls pretending to be government, businesses, or family and friends2
- (231) 465-6033Reducing your debt (credit cards, mortgage, student loans)2
- (231) 465-6440Calls pretending to be government, businesses, or family and friends2
- (231) 465-6810Other2
- (231) 465-6883Reducing your debt (credit cards, mortgage, student loans)2
- (231) 465-6959Reducing your debt (credit cards, mortgage, student loans)2
- (231) 486-5003Dropped call or no message2
- (231) 489-1279Reducing your debt (credit cards, mortgage, student loans)2
- (231) 489-1304Other2
- (231) 489-1829Other2
- (231) 525-4999Dropped call or no message2
- (231) 655-0426Other2
- (231) 730-0043Calls pretending to be government, businesses, or family and friends2
- (231) 774-9180No Subject Provided2
- (231) 774-9402Calls pretending to be government, businesses, or family and friends2
- (231) 790-0862Calls pretending to be government, businesses, or family and friends2
- (231) 790-8303Other2
- (231) 790-8355Other2
- (231) 790-8466Reducing your debt (credit cards, mortgage, student loans)2
- (231) 790-8588Dropped call or no message2
- (231) 790-8927Other2
- (231) 790-8948Reducing your debt (credit cards, mortgage, student loans)2
- (231) 797-9006Reducing your debt (credit cards, mortgage, student loans)2
- (231) 797-9039Other2
- (231) 835-8276Dropped call or no message2
- (231) 872-6087Reducing your debt (credit cards, mortgage, student loans)2
What to do if a 231 number called you
- Do not call back and do not press any key to "opt out".
- Never give codes, card numbers or remote access to an inbound caller.
- Block the number and report the call at reportfraud.ftc.gov.
- Report it to GACS so other people searching this number find your warning — report a scam call.
Questions people ask
Is every call from a 231 number a scam?
No. Area code 231 is a normal US area code used by ordinary businesses and people. The numbers listed here are the ones consumers named in Do Not Call complaints — the area code itself tells you nothing about whether a specific call is legitimate.
Why do I keep getting calls from 231 numbers?
Scam dialers often spoof a local-looking prefix so the call appears familiar, and they rotate through numbers within the same area code. That is why blocking one number rarely stops the calls.
Should I call a 231 number back?
No. Returning a call to an unknown number can confirm your line is live or connect you to a premium-rate service. A genuine caller will leave a voicemail.
Where do these counts come from?
The US Federal Trade Commission publishes the phone numbers named in Do Not Call complaints as daily open-data files. GACS aggregates those files. These totals cover only the days we have processed, not all time.
Source: FTC Do Not Call complaint data. Complaints are unverified consumer allegations and caller ID is easily spoofed, so a listed number may belong to someone unconnected to the calls.
Authoritative sources
Independent primary sources used to check and corroborate the guidance on this page.
- US Federal Communications Commission — Robocalls
Regulator guidance on blocking unwanted calls and texts.
- US National Do Not Call Registry
Register a number and file telemarketing complaints.
- UK Ofcom — Nuisance Calls and Messages
UK regulator advice and reporting routes for scam calls and SMS.
