Custer Michigan Area Code
One area code covers Custer: 231.
The code covering Custer
| Area code | Primarily serves | In service |
|---|---|---|
| 231 | Muskegon | 1999 |
Scope the codes matched to Custer. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated . Overlay relationships come from the numbering-plan authority; the place match is computed.
Which part of town has which code
Custer has a single code, so there is nothing to divide — every local line carries 231.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so Custer’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.
Nearby places with different codes
These are the closest places to Custer whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.
| City | Distance | Their area codes |
|---|---|---|
| Casnovia Michigan area codes | 54 mi | 616 |
| Mecosta Michigan area codes | 55 mi | 231, 989 |
| Kent City Michigan area codes | 55 mi | 616 |
| Barryton Michigan area codes | 55 mi | 989 |
| Lake Michigan area codes | 57 mi | 989 |
| Pierson Michigan area codes | 57 mi | 231, 616 |
| Lakeview Michigan area codes | 59 mi | 989 |
| Ferrysburg Michigan area codes | 60 mi | 231, 616 |
Straight-line distance between place reference points, not driving distance.