Electric Companies
Ameren Illinois
Springfield, IL 62701
(800) 755-5000 ameren.com
Electric Companies
Ameren Illinois
Carbondale, IL 62901
(800) 755-5000 ameren.com
Verified Electric and Other Services Combined
Ameren Illinois Company
Belleville, IL 62221
Natural Gas
Ameren Illinois Company
700 Oakwood Avenue Alton, IL 62002