Contact Alliant Energy

Phone number: 📞1-800-ALLIANT (800-255-4268).

  • Customer service hours: 7 a.m.–7 p.m. Monday–Friday.
  • Emergency reporting 24/7 (Downed power line, natural gas leak, carbon monoxide alarm, or other emergency.)

For non-emergencies, you may also email us within My Account.

Alliant Energy Help Center

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