Area code 231
Get a 231 phone number
To get a 231 phone number, pick an available 231 number below and sign up for AvoCall. Your new number works for calls and texts on the phone you already own over WiFi or data. Current web pricing is verified at checkout. No second SIM and no new device are required.
- Location
- Muskegon, MI, Michigan
- Time zone
- Eastern (GMT -5)
The 231 area code covers Muskegon, MI and nearby Michigan communities.
Top 20 231 numbers available right now
Pulled live from our carrier network. Last updated: August 25, 2026 at 3:32 PM UTC.
Every number requires an AvoCall plan. Current web pricing is verified at checkout, and number availability changes often.
About the 231 area code
Muskegon heads the list of Michigan cities in area code 231, joined by Traverse City, Cadillac, Big Rapids, and Allendale. Local clocks run on Eastern time.
The code opened for service in 1999 after being split out of 616. In the years since, its map has stayed put, with no overlay above it and no newer code cut away after that first division.
Dialing note: 231 was carved out of the 616 territory and went into service in 1999.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 07/16/2026.
231 phone number FAQ
- How do I get a 231 phone number?
- Pick an available 231 number and sign up for AvoCall. Your new Muskegon, MI number works for calls and texts on your existing phone over WiFi or data. Current web pricing is verified at checkout. There is no second SIM and no new device.
- Where is the 231 area code?
- It serves Muskegon, MI and nearby cities in Michigan, including Muskegon, Allendale, Traverse City.
- Can I receive verification codes on a 231 number?
- AvoCall 231 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.