Emergency? Call 1-800-ALLIANT (800-255-4268)

Customer Service

1-800-ALLIANT (800-255-4268)

Emergency calls answered 24/7
(Power outage, downed power line, natural gas emergency or leak)

Other inquiries answered 6 a.m. – 9 p.m. Monday through Saturday

Use our online form

How to Spot a Scam

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Learn about common tactics scammers use to prey on utility customers, and how to avoid becoming a victim.

Customer Newsletter


Our monthly newsletter for residential customers includes energy tips, safety reminders, special promotions and more!