Lookup › Area code 231
231 Area Code — Muskegon, Michigan
Area code 231 serves Muskegon, MI.
Most looked-up 231 numbers
- 231-448-8787
- 231-649-8986
- 231-321-2705
- 231-887-5733
- 231-460-3520
- 231-887-8194
- 231-337-7547
- 231-264-7110
- 231-425-6984
- 231-722-3881
- 231-620-6691
Phone prefixes in 231
Carriers serving 231
- Verizon (4 numbers)
- T-Mobile (2 numbers)
- At&t (1 numbers)
- Twilio (1 numbers)
- Teleport Communications Americ (1 numbers)
- Onvoy, LLC - Mi (1 numbers)
- Lucre, Inc. (1 numbers)
Frequently asked questions
Where is area code 231?
Area code 231 serves Muskegon, MI.
What prefixes are in area code 231?
Phone2.io tracks 10 phone prefixes in area code 231, with carrier and spam-report data on individual numbers.
More about area code 231
Area code 231 overview, history, and local numbers · Get a MI phone number
Last updated: January 14, 2026