Contact Us by Email

Call us immediately to report a gas odor.

Do NOT contact us by email. Call us - see phone numbers on right.

	Send your general customer service inquiries to us by email. Complete our online message form.

If you have comments or suggestions relating to this website, contact the Ameren.com webmaster.

Report Outage


	Report Outage on full site Use your phone and house numbers to report your outage online.
	Report Outage on mobile site On smartphones, visit ameren.com to report or check outages.
	Phone Numbers Call Ameren Illinois at 800.755.5000. Call Ameren Missouri at 800.552.7583. More information in Outage Center.

Call us immediately to report a gas odor.

Do NOT contact us by email. Call us - see phone numbers on right.

Ameren Illinois Customer Service:				Ameren Missouri Customer Service:
	Residential Customers	Phone:	800.755.5000		Residential Customers	Phone:	800.552.7583
	7:00 a.m. - 7:00 p.m./M-F	Fax:	800.851.1796		7:00 a.m. - 7:00 p.m./M-F	Fax:	866.297.8054

	Business Customers	Phone:	800.232.2477		Business Customers	Phone:	800.552.7583
	7:00 a.m. - 7:00 p.m./M-F	Fax:	877.263.7369		7:00 a.m. - 5:30 p.m./M-F	Fax:	866.222.3471

Investor Services				Other Services
	800.255.2237				Call before you dig!	811
					Hearing Impaired	711


Please include your bill stub with your check or money order. If you do not have your bill stub, write your 10-digit account number or service address on your payment to ensure your account is credited. Allow at least five days for the payment to reach us.

Ameren Illinois Mailing Addresses		Ameren Missouri Mailing Addresses

Send all payments to:		Send all payments to:
	Ameren Illinois		Ameren Missouri
	PO Box 88034		PO Box 88068
	Chicago, IL 60680-1034		Chicago, IL 60680-1068

Send all correspondence to:		Send all correspondence to:
	Ameren Illinois		Ameren Missouri
	300 Liberty St.		PO Box 790352
	Peoria, IL 61602		St. Louis, MO 63179-0352


Save a stamp! Sign up for Paperless Billing, our safe, convenient and fast electronic billing option. With Paperless Billing you'll receive your Ameren bill in an email, which will include an option to pay your bill online. If you have comments or suggestions relating to this website, contact the Ameren.com webmaster.