Armstrong, Illinois
Armstrong, Illinois, in Vermilion County, has ZIP code 61812 and area code 217, with 447 as an overlay.
- ZIP code
- 61812
- Area codes
- 217, 447
- County
- Vermilion County
- State
- Illinois
- Time zone
- Central Time
- Coordinates
- 40.2175, -87.8943
ZIP codes in Armstrong
Area codes for Armstrong
- Area code 217
In service since 1947. Shares its area with 447. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
- Area code 447
In service since March 27, 2021. Shares its area with 217. 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
Armstrong is in the Central Time zone.
Towns near Armstrong
Local numbers in area code 217
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