Niantic, Illinois
Niantic, Illinois, in Macon County, has ZIP code 62551 and area code 217, with 447 as an overlay.
- ZIP code
- 62551
- Area codes
- 217, 447
- County
- Macon County
- State
- Illinois
- Time zone
- Central Time
- Coordinates
- 39.8582, -89.1701
ZIP codes in Niantic
Area codes for Niantic
- 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
Niantic is in the Central Time zone.
Towns near Niantic
- Illiopolis7 km (4.3 mi)
- Harristown7.3 km (4.5 mi)
- Mount Auburn12 km (7.5 mi)
- Latham12.6 km (7.8 mi)
- Warrensburg12.7 km (7.9 mi)
- Boody14.7 km (9.1 mi)
- Decatur17.6 km (11 mi)
- Elwin18.4 km (11 mi)
Local numbers in area code 217
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