Alto, Wisconsin
No ZIP code carries the name of Alto, Wisconsin, in Fond du Lac County; the nearest ZIP codes are 53919 and 53963, in area code 920, with 274 as an overlay.
- Nearest ZIP
- 53919, 53963
- Area codes
- 920, 274
- County
- Fond du Lac County
- State
- Wisconsin
- Time zone
- Central Time
- Coordinates
- 43.6676, -88.7924
Nearest ZIP codes to Alto
These are the ZIP codes nearest to Alto, each listed with the post office it is named after.
Area codes for Alto
- Area code 920
In service since July 26, 1997. Shares its area with 274. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
- Area code 274
In service since May 5, 2023. Shares its area with 920. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.
Time zone
Alto is in the Central Time zone.
Towns near Alto
Local numbers in area code 920
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- (920) 880-8678Algoma, WI$59View & buy
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