Frontier, Michigan
Frontier, Michigan, in Hillsdale County, has ZIP code 49239 and area code 517.
- ZIP code
- 49239
- Area code
- 517
- County
- Hillsdale County
- State
- Michigan
- Time zone
- Eastern Time
- Coordinates
- 41.7825, -84.6047
ZIP codes in Frontier
| ZIP code | Post office | County | Area codes |
|---|---|---|---|
| 49239* | Frontier | Hillsdale County | 517 |
* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.
Area code for Frontier
- Area code 517
In service since 1947. Local calls are dialed with seven digits; dialing ten digits also works.
Time zone
Frontier is in the Eastern Time zone.
Towns near Frontier
Local numbers in area code 517
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- (517) 550-7775Dimondale, MI$89View & buy
- (517) 550-7779Dimondale, MI$89View & buy
- (517) 610-7774Hillsdale, MI$89View & buy
- (517) 610-7775Hillsdale, MI$89View & buy
- (517) 610-7776Hillsdale, MI$89View & buy
- (517) 610-7778Hillsdale, MI$89View & buy
- (517) 698-1818North Adams, MI$89View & buy
- (517) 758-8080Holt, MI$89View & buy
- (517) 790-8883Mosherville, MI$89View & buy
- (517) 790-8886Mosherville, MI$89View & buy
- (517) 790-8887Mosherville, MI$89View & buy
- (517) 790-8889Mosherville, MI$89View & buy
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