Contact Info
Alliant Energy
Alliant Energy
Decorah, IA 52101
Phone: 1-800-255-4268
Contact via Email
Visit our Website
Our Website
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Services
- utility
- electricity
- power
Hours of Operation
1-800-alliantAbout Us
Find everything you need to know about your Alliant Energy account, including starting or stopping service, payment options, meter reading, assistance programs and more.