Contact Us About Your Ameren Stock Account 
 
 
Investor Information Line
Ameren's Investor Services Reps are available business days from 8:00 a.m. to 4:00 p.m. (Central Time).

    St. Louis: 314.554.3502
    Toll Free: 800.255.2237
    Fax: 314.554.2401


E-mail Correspondence

Contact us by email at invest@ameren.com
     U.S. Mail
Ameren Services Company   
Investor Services
P.O. Box 66887
St. Louis, MO 63166-6887
Overnight Delivery
Ameren Services Company
Investor Services; M.C. 1035
1901 Chouteau Avenue
St. Louis, MO 63103
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