100% fiber-optic internet across the Land of Lincoln — from Chicago to Springfield to Peoria. Symmetric speeds up to 5 GIG, no data caps, no annual contract. Check if your Illinois address qualifies today.
AT&T Fiber is available across major Illinois metros and growing communities. Here are the primary markets with fiber-optic coverage in the Land of Lincoln.
Illinois's largest city and the third-largest metro in the US. AT&T Fiber coverage is extensive across Chicago neighborhoods and surrounding suburbs, with speeds up to 5 GIG available in many areas.
Check Chicago addressIllinois's second-largest city and a key Chicago suburb. AT&T Fiber is available in many Aurora neighborhoods, offering fiber-optic speeds with no data caps and no annual contract.
Check Aurora addressA thriving western Chicago suburb consistently ranked among the best places to live in the US. AT&T Fiber delivers symmetric multi-gig speeds across many Naperville neighborhoods.
Check Naperville addressA fast-growing southwest Chicago suburb with expanding AT&T Fiber coverage. Joliet residents can get symmetric fiber speeds, unlimited data, and no annual contract on every plan.
Check Joliet addressIllinois's third-largest city and the economic hub of northern Illinois. AT&T Fiber coverage continues to expand across Rockford, bringing fiber-optic speeds to more residents and businesses.
Check Rockford addressIllinois's capital city and home to Abraham Lincoln's legacy. AT&T Fiber is available in many Springfield neighborhoods, offering symmetric multi-gig fiber with no data caps.
Check Springfield addressThe largest city on the Illinois River and a regional hub for central Illinois. AT&T Fiber coverage is expanding across Peoria, delivering fiber-optic speeds up to 5 GIG with no data cap.
Check Peoria addressHome to the University of Illinois, Champaign features growing AT&T Fiber availability. Students, remote workers, and families benefit from symmetric multi-gig fiber with no data caps.
Check Champaign addressDon't see your city? AT&T Fiber is expanding across Illinois. Check your address to see if service is available.
AT&T is investing in fiber-optic infrastructure across the Land of Lincoln. Here's what you need to know about availability, expansion, and how to check your address.
AT&T Fiber availability in Illinois varies by neighborhood — even within the same city. The quickest way to confirm service is to check your specific address. Use our availability checker or call a specialist at (866) 667-5219.
AT&T Fiber delivers a true fiber-optic connection directly to your home — not hybrid cable or DSL. That means symmetric upload and download speeds, low latency, and no data caps on any plan. In Illinois, fiber is available in major metros like Chicago and its suburbs, with steady expansion into Rockford, Springfield, Peoria, Champaign, and surrounding communities.
If AT&T Fiber isn't yet at your address, the network is expanding — check back regularly or sign up for updates. In the meantime, AT&T Internet (IPBB) may be available as an alternative, though fiber offers the best speeds and value when available.
Every plan includes unlimited data, symmetric speeds, and no annual contract. Prices below reflect AutoPay & paperless billing discounts.
All plans include a free Wi-Fi gateway. Speeds and availability vary by Illinois address.
Yes. AT&T Fiber is available across much of Illinois, including the Chicago, Aurora, Naperville, and Springfield metro areas. Coverage is expanding steadily as AT&T continues investing in fiber infrastructure. Enter your address in our availability checker or call (866) 667-5219 to confirm service at your specific location.
AT&T Fiber serves numerous Illinois cities. Major markets with strong fiber coverage include Chicago, Aurora, Naperville, Joliet, Rockford, Springfield, Peoria, and Champaign. Smaller communities throughout the state are also gaining access as AT&T continues its fiber expansion across the Land of Lincoln.
AT&T Fiber offers speeds from 300 Mbps up to 5 GIG (5,000 Mbps) in Illinois, with symmetric upload and download on every tier. Available plans include 300 Mbps ($35/mo), 500 Mbps ($45/mo), 1 GIG ($50/mo), and 5 GIG ($95/mo) with AutoPay and paperless billing. Actual speeds may vary by address.
No. AT&T Fiber plans in Illinois include truly unlimited data with no caps, no overage fees, and no throttling on any plan. This applies statewide — whether you're in Chicago, Springfield, or a smaller Illinois town. You can stream, game, and download without limits.
In many cases, yes. AT&T Fiber uses fiber-optic infrastructure that is separate from cable providers like Xfinity and Spectrum, so having one service does not prevent you from getting another. If AT&T Fiber has been installed in your Illinois neighborhood, you can switch. Check availability at your address to find out.
No. AT&T Fiber plans in Illinois are month-to-month with no annual contract and no early termination fee. You can change or cancel your plan at any time without penalty. This applies to all fiber speed tiers — 300 Mbps through 5 GIG.
Use our availability checker on this page or call (866) 667-5219. Enter your name, phone, email, and address, and a specialist will confirm whether AT&T Fiber is available at your Illinois location and help you choose the right plan. The check is free with no obligation to buy.
One quick check tells you if AT&T Fiber is available where you live in Illinois. If it is, you could switch today — no contract, no data cap, symmetric speeds up to 5 GIG.