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| Frequency: | 100.9 FM |
| Phone: | 608-274-5450 / 608-274-5450 |
| Address: | 2651 S Fish Hatchery Rd, Madison, WI 53711 |
| Website: | https://iheartumadison.iheart.com/ |
| Facebook: | https://www.facebook.com/iheartumadison |
| Twitter: | https://www.twitter.com/iheartumadison |
U100.9 is a Classic Rock radio station serving Madison. Owned and operated by iHeartMedia.
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