Electric

Ameren CILCO 888-672-5252
Ameren CIPS 888-789-2477
Ameren IP 800-755-5000
Ameren UE 800-552-7583
ComEd 800-334-7661
MidAmerican Energy 888-427-5632

Gas

Ameren CILCO 888-672-5252
Ameren CIPS 888-789-2477
Ameren IP 800-755-5000
Ameren UE 800-552-7583
ATMOS 888-286-6700
NICOR 888-642-6748
North Shore 866-556-6004
Peoples Gas 866-556-6001

Telephone

AT&T 800-288-2020
MCI 888-624-5622
McLeodUSA 800-500-3453
Verizon 800-483-3000

Water

Aqua Illinois 800-851-1305
Illinois-American Water 800-422-2782