Customer Service

Phone and Fax Numbers

Residential

Business

AmerenCILCO

888.672.5252

877.677.5740

Fax Number

309.677.5025

877.263.7369

AmerenCIPS

888.789.2477

800.232.2477

Fax Number

877.226.3736

877.263.7369

AmerenIP

800.755.5000

800.363.6805

Fax Number

217.424.8345

217.424.8345

AmerenUE

314.342.1111 800.552.7583

St. Louis area All others

314.342.1111 800.552.7583

St. Louis area All others

Fax Number

314.206.0485

314.206.0485

Construction Services

UE Construction

866.992.6619 or constructionhotline@ameren.com

Fax: 314.641.2406

Web: UE Construction

Ameren IL Utilities

Residential Construction

Commercial & Industrial Construction

Other Phone Numbers

Call Before You Dig!

811

Economic Development

800.981.9409

Investor Services

314.554.3502

St. Louis area

800.255.2237

All others

Power Quality Hotline (AmerenUE)

800.899.5973

Other Contact Information

Power Out? Call Us

eMail (for non-outages)

Mailing Address for Payment:

Ameren Residential Customers

Ameren Business Customers

Hearing impaired customers can use the Relay Service of 711 to conduct business with Ameren.

Illinois Relay

Missouri Relay

Web Site Contact

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