Too late for RambleOn, but for future reference:
Number one rule:
Never use AT&T. I cannot stress this enough. They have totally tanked in the last 5 years. If you already have AT&T, do not take an "upgrade" or "new plan", even if you are supposedly required to because the old service is going away. Cancel everything if they say that. If your only choices are AT&T or moving, put your house up for sale. (I've heard a couple people say they weren't angry at AT&T's cellular service. But never anyone who was anything other than furious at AT&T otherwise.) They will simply bill you for whatever they feel like and throw you on hold for hours until you hang up if you attempt to get service or cancel; most of the time they do not care a bit if your service even exists.
For the city of Peoria and city of East Peoria, your only options (as far as I know) are i3 Broadband (former itv3) or Comcast (xfinity). Both provide Internet, TV, and phone:
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i3 is rock-solid but only builds where it wants to right now; in Peoria, it's available in most of the area north of Lake Avenue, but you have to enter your address (or at least the block) on their front web page to find out if it's available. If you can get it, they run fiber into your building, the Internet is the speed promised, and they can provide phone service to your home phones through the router also. They have an East Peoria HQ (though they're now co-owned with a Texas broadband company), a Grand Prairie sales office, and local people.
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Comcast is required to provide TV service everywhere in the city, and since their Internet and phone are over the same cable, it's all the same to them. Their Internet usually has good speeds during certain times of the day. During high usage, the speed goes down. I've heard of Comcast routers conking out occasionally; but same for self-purchased ones. Some people who hate Comcast on and off; but the complaints have gotten less the last 3 or 4 years, especially compared to AT&T. (Did I mention not to use AT&T?)
Alternatively, all the major cellular providers now also offer two similar services: (1) WiFi hotspot, which can be done from your phone, tablet, or a special device, and gives you Internet wherever there's a signal. (2) Building hotspot/router service, which provides a somewhat more stable cellular link to your home or office, providing WiFi for Internet and/or dialtone service for your existing wired phones. Both of these usually have monthly data limits after which your Internet slows down and/or they charge you for overage.
Outside of Peoria & East Peoria:
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MTCO isn't shy about where they cover: See
www.mtco.com/?main&m ap for the coverage map. In particular, Germantown Hills, Metamora, and Washington are almost totally covered. Unfortunately, as mentioned, they quit taking Peoria residential customers a few years ago, and are shutting down their existing Peoria customers on February 1, 2019. (That, by the way, is because they have to go over AT&T lines there, and AT&T is intentionally destroying the copper network so that they can claim that services that are still subject to government anti-monopoly laws "aren't available". Did I mention not to use AT&T?)
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Heartland Cable, based in Minonk, also has a sister company
Heartland Fiber.
They provide fiber service with Internet/TV/phone in Minonk, Eureka, and Roanoke, and a bunch of tiny towns around the Tazewell/McLean and Woodford/McLean/Livingston borders. I don't know much about them.
I don't know what's available in Peoria Heights. Stratus Networks is based there, but they mainly do big-business/multi-site projects; they're definitely not a residential service.
