Providers
143
Distinct ISPs filing in IL
FCC Form 477 (2020) 143 providers 141 Mbps avg satellite-led mix
Illinois Broadband Data
FCC Form 477 internet service provider coverage and transport-technology mix for Illinois (IL). All figures are programmatic rollups of public deployment filings.
Data updated June 2026
Average max download
141 Mbps
Mean of advertised speeds
Fiber coverage
3.1%
Share of FCC filings
below the ~4.3% national fiber share
Total deployment records
2,876,875
Across 143 providers
Illinois at a glance
In Illinois, 46.1% of Form 477 records are satellite and 3.1% are fiber, a satellite-led mix across 2,876,875 deployment records.
- 3.1%
- fiber share (below the ~4.3% national share)
- 9.9%
- cable share of deployment records
- 46.1%
- satellite share - the dominant category
- widest footprint - 473,478 records
Shares are the percentage of this state's Form 477 deployment records using each technology category.
What the FCC Data Shows for Illinois
Illinois has 143 distinct broadband providers on file with the FCC and 2,876,875 total deployment records across all technology types. The state's average maximum advertised download speed sits at 141.0 Mbps - at or above the federal 100/20 Mbps broadband benchmark. That headline figure is the mean across every filing, so it weights provider-by-census-block records equally rather than weighting by population, which means rural filings pull the average as much as urban ones.
The technology mix in Illinois is led by satellite, with fiber accounting for 3.1% of filings, cable 9.9%, and DSL 24.7%. Fiber share is the single best indicator of future-proofed infrastructure because fiber supports symmetric multi-gigabit speeds and scales without rewiring; cable share signals incumbent coverage in suburbs and cities; DSL share typically correlates with legacy copper footprints in smaller towns and rural pockets where no newer technology has arrived yet.
AT&T Inc. files the most deployment records in Illinois at 473,478, with ViaSat, Inc. second at 451,554. The dominant technology line by filing count is Satellite, which alone accounts for 1,326,736 records. Remember that Form 477 counts provider filings, not homes actually connected, so a block with five providers shows up as five records, useful for measuring competition and coverage breadth, but not a direct proxy for subscriber counts or real-world speeds at any specific address.
Technology Breakdown
Illinois broadband technologies by reported deployment records
FCC Form 477 fixed broadband deployment data (June 2020 status)
Full technology detail
| Technology | Records |
|---|---|
| Satellite | 1,326,736 |
| Terrestrial Fixed Wireless | 464,805 |
| Cable | 286,010 |
| ADSL2+ | 273,397 |
| DSL | 260,171 |
| VDSL | 177,458 |
| Fiber | 88,024 |
| Other Copper | 246 |
| Symmetric DSL | 25 |
| Other | 3 |
Who Reports the Most in Illinois
The providers carrying the largest share of Illinois's Form 477 deployment records. AT&T Inc. leads with 473,478 records.
Top providers in Illinois by reported deployment records
FCC Form 477 fixed broadband deployment data (June 2020 status)
Full Provider List - Illinois
Showing top 50 of 143 providers.
Disclaimer: Data from FCC Form 477. For informational purposes only. Coverage percentages are based on provider filings and may overstate actual availability at specific addresses. Speed figures represent maximum advertised speeds, not guaranteed performance. Always verify availability directly with providers.
Frequently Asked Questions
How many broadband providers serve Illinois?
According to FCC Form 477 data, 143 broadband providers have filed deployment records in Illinois.
What is the average download speed in Illinois?
The average maximum advertised download speed across all providers in Illinois is 141.0 Mbps, based on FCC deployment filings.
What broadband technologies are available in Illinois?
Illinois has broadband coverage through multiple technologies including fiber (3.1%), cable (9.9%), and DSL (24.7%).
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from the FCC Form 477 fixed broadband deployment dataset. See our methodology for details. Retrieved and formatted by PlainBroadband Editorial
State-level figures reflect reported provider footprint, not a real-time or address-level availability check.
PlainBroadband is rendered directly from the FCC Form 477 fixed broadband deployment dataset (June 2020 status, the final Form 477 release), no number is typed in by an editor. This state's coverage figures are computed directly from the underlying FCC Form 477 census-block records, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2020.