Area Code: 231
231 Area Code belongs to the state of Michigan. The following cities fall under this area code: Muskegon, Norton Shores, Shelby. There have been a total of 11976 Numbers for this area code.
Numbers for 231
| Number | Comments |
|---|---|
| 231-598-6056 | 0 |
| 231-642-4811 | 0 |
| 231-745-2609 | 0 |
| 231-912-1315 | 0 |
| 231-932-4724 | 0 |
| 231-950-5431 | 0 |