Who is calling from 231?
Area code 231 belongs to Muskegon, Michigan. Enter the full number to see the carrier, line type and location free, and the owner name when on record.
Places served by 231
NANPA rate centers in 231, ranked by how many phone prefixes each holds.
Who holds 231 numbers
572 prefixes (231-XXX) are assigned. Carriers holding the most:
About 18% of 231 prefixes are held by wholesale carriers that commonly supply numbers to VoIP and texting apps (such as Google Voice or TextNow). A number from one of those blocks may not belong to a traditional phone line. What a VoIP number means.
Got a call or text from a 231 number?
- Don't call back until you know who it is. Scam calls often use local-looking numbers, and caller ID can be spoofed (FCC).
- Type the full number above. Carrier, line type and city are shown before anything is charged.
- If it is someone you met on a dating app, see reverse phone lookup for dating.
- Recognize the common scripts: fake bank alerts, unpaid toll texts, fake government agents, one-ring calls. All current phone scams.
- Report scam calls at ReportFraud.ftc.gov and add your number to the National Do Not Call Registry.
Other Michigan area codes · see all
Questions about 231
Where is area code 231?
231 is an area code for Muskegon, Michigan, also serving places such as Traversecy, Petoskey, Cadillac.
What time zone is 231?
Eastern Time (ET).
Is a call from 231 a scam?
The area code alone cannot tell you. Scammers spoof local-looking numbers, so check the full number: a reverse lookup shows the line type and carrier for free, and the owner name when it is on record.
Who called me from 231?
Enter the full 231 number in the search box on this page. TrueSearch shows the carrier, line type and location free, and the owner name when it is on record. If no name is found, you do not pay.
All 231 prefixes (572)
Location is derived from the area code and may not reflect where the caller is now. Places and carriers come from the NANPA prefix report; time zones from the IANA database. TrueSearch compiles publicly available information and licensed telecom data. Not a consumer reporting agency. Not for FCRA purposes such as employment, tenant, credit or insurance screening.