| T-Mobile | 640 W Madison St | Poor Signal Service, no data and no voice calling. I'm on 2 bars and LTE and not great signal strength. | 2015 |
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| Sprint | 955 Parkview Blvd | 0-1 bars 3g inside building. Data doesn't work. Calls go straight to voicemail. Outside, I get maybe 2 bars and can make calls, but data doesn't work well until I walk 150 feet away from the building to the street. Then I switch to 4G. Unacceptable for a BUSINESS PARK
Everyone in the office switched from sprint. I'm on the verge as well | 2014 |
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| Verizon | 150 S Wacker Dr | 19th floor, concrete and steel 33 story office building.
1 Bar of signal. Sometimes no signal, both on my company's network and on wireless LTE, which rarely comes through. Instead, I see 3G or 1x.
My phone sends duplicate messages very often. | 2015 |
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| Verizon | 111 S Wacker Dr | 0 4G Service, no accountability by Verizon. Terrible company | 2015 |
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| Sprint | 947 W Fullerton Ave | Lose Sprint coverage in the area | 2019 |
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