Internet Providers in Chicago, IL

Chicago pairs Xfinity (all 46 ZIPs) against AT&T Fiber (44) with Astound as the value challenger in 41 — plus Zentro’s fixed wireless across 35 ZIPs. Fiber of some kind reaches every ZIP code in the city.

15Residential providers
46ZIP codes
46 / 46ZIPs with fiber
10 GbpsFastest filed speed

FCC Broadband Data Collection, Dec 2024 vintage, residential filings — broadbandmap.fcc.gov. Availability is address-specific within each ZIP.

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Top internet providers in Chicago

Six of the 15 filed providers in Chicago are listed below, each with its technology, ZIP-code reach and top filed speed.

ProviderTechnologyZIPs served (of 46)Top filed speed
XfinityCable + Fiber4610 Gbps
AT&T FiberFiber445 Gbps
AstoundCable + Fiber411.5 Gbps
ZentroFixed Wireless (licensed)352 Gbps
T-Mobile Home Internet5G Home46100 Mbps
Verizon 5G Home5G Home461 Gbps

5G home coverage is ZIP-wide here: Verizon 5G Home and T-Mobile Home Internet both file in every one of the 46 ZIP codes, at filed speeds from 100 Mbps (T-Mobile Home Internet) to 1 Gbps (Verizon 5G Home). Satellite (Starlink, Viasat, HughesNet) isn’t ranked because it covers every Chicago address.

Xfinity alone reaches every ZIP code by wire in Chicago, with AT&T Fiber filed in 44. Xfinity also carries the table’s top speed, 10 Gbps, so in Chicago the widest wired footprint and the highest filed speed come from the same network. Multi-gig service (2 Gbps and up) is on file from Xfinity (10 Gbps), AT&T Fiber (5 Gbps), and Zentro (2 Gbps). Zentro adds fixed-wireless service, filed in 35 of the 46 ZIP codes.

Internet in Chicago, IL: what people ask

Who has the best internet in Chicago, IL?
There isn’t one answer for the whole city. By reach, Xfinity is the one wired network filed in every ZIP code. By speed, Xfinity leads there too, at 10 Gbps. The best pick is address-specific — enter your ZIP to see every option at your home.
Does Chicago have fiber internet?
Yes — fiber is filed in all 46 ZIP codes in Chicago (FCC data, Dec 2024). Among fiber-only networks, AT&T Fiber reaches the most ZIP codes, all but two of the 46. On fiber, the top filed tier is 10 Gbps. Whether fiber reaches a particular building is an address-level question, which is what the search checks.
What is the cheapest internet in Chicago, IL?
Entry promos in Chicago typically run $25–$50/mo from the cable and 5G home providers, and $35/mo 5G home internet (with a mobile line) is available across the city. The cable options filed for Chicago are Xfinity and Astound; the 5G home options are Verizon 5G Home and T-Mobile Home Internet. Offers vary by address, so search your ZIP for the ones that apply; our cheapest-plans guide explains the entry tiers.

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