Peoria / Area code
Area code 309
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The 309 area code serves all or part of Bureau, Dewitt, Fulton, Hancock, Henderson, Henry, Knox, Marshall, Mason, McDonough, McLean, Mercer, Peoria, Rock ...
Area code 309 covers: Peoria, Bloomington, Moline, Rock Island, Galesburg; west-central Illinois. Its main city is Peoria, Illinois. If you head to Peoria, you' ...
Nov 29, 2021 · 861 will join 309 as the area codes serving the Peoria area in late 2022 or early 2023 as 309 numbers start to run out.
The 861 area code is an overlay for area code 309 so it will serve the same area (Peoria, IL). It was recently put into service on February 24, 2023. History.