Area code 861
Area code 861 is an Illinois area code, in service since February 24, 2023.
It was added as an overlay on 309: both codes serve the same area, so neighbors can have numbers in either one.
Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
It is in the Central Time zone.
Map
Main cities in area code 861
Overlays and neighboring area codes
Overlay, serving the same area: 309.
Neighboring area codes: 217, 573, 660, 641, 319, 563, 630, 815, 847, 765, 708, 773, 312.
Counties in area code 861
Towns in area code 861
- Peoria
- Bloomington
- Pekin
- Rock Island
- East Peoria
- Galesburg
- Moline
- Normal
- Abingdon
- Adair
- Aledo
- Alexis
- Alpha
- Altona
- Anchor
- Andalusia
- Andover
- Annawan
- Armington
- Arrowsmith
- Astoria
- Atkinson
- Avon
- Bardolph
- Barstow
- Bath
- Bellflower
- Benson
- Berwick
- Biggsville
- Bishop Hill
- Blandinsville
- Bradford
- Brimfield
- Bryant
- Buffalo Prairie
- Bushnell
- Cambridge
- Cameron
- Camp Grove
- Canton
- Carbon Cliff
- Carlock
- Carman
- Castleton
- Chenoa
- Chillicothe
- Coal Valley
- Colchester
- Colfax
- Colona
- Congerville
- Cooksville
- Cordova
- Creve Coeur
- Cropsey
- Cuba
- Dahinda
- Danvers
- Deer Creek
And 179 more towns: every town in Illinois.