Area code 309/861 is a telephone area code in the North American Numbering Plan (NANP) for the west-central part of the U.S. state of Illinois. Two hundred and one municipalities are included in the plan such as Bloomington, Canton, East Moline, East Peoria, Galesburg, Kewanee, Macomb, Minonk, Moline, Morton, Normal, Pekin, Peoria, Rock Island, Silvis, and many smaller communities within the western part of central Illinois.