Illinois Broadband Data
Illinois is a high-volume Form 477 filing book: 2,876,875 deployment records across 143 providers, with a satellite-led mix and 21.9% of filings at ≥100 Mbps advertised max.
Data updated June 2026
2,876,875 Form 477 records, upper third of 56 states/territories (≥ 1,310,136)
Illinois at a glance
In Illinois, 46.1% of Form 477 records are satellite and 3.1% are fiber, a satellite-led high-volume book (2,876,875 records).
- 3.1%
- fiber share (below the 4.3% national share)
- 21.9%
- filings ≥100 Mbps max (-2.7 pp vs 24.6% national)
- 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. Speed tiers are max-advertised download buckets, not measured retail speeds.
Illinois broadband livability score
A single 0-100 verdict combining Illinois's standing on 3 FCC Form 477-derived measures against every other tracked state and territory. A missing measure would drop out and redistribute its weight rather than deflate the score, not exercised on this build, since Illinois reports all three.
56/100
Percentile-weighted across 3 of 3 measures
- Average download speed
- D 141 Mbps
52th percentile of 56 tracked
- Fiber availability
- F 3.1 %
34th percentile of 56 tracked
- Provider competition
- A 143.0 providers
95th percentile of 56 tracked
Illinois's ≥100 Mbps share tracks near the national Form 477 mix
On this high-volume book, 21.9% of max-advertised-download filings sit at ≥100 Mbps (giga + gigabit buckets), versus 24.6% across every state_speed_tiers row (-2.7 pp).
- IL ≥100 Mbps share
- 21.9%
- All-state ≥100 Mbps share
- 24.6%
- IL vs national
- -2.7 pp
- IL avg max advertised
- 141 Mbps
Derivation: IL state_speed_tiers row vs SUM(state_speed_tiers); maxaddown buckets, not address-level availability or retail speed tests.
Illinois vs all states by provider count
Where this state's Form 477 filer count sits among every state and territory on PlainBroadband
143 4th of 56 higher than 52 of 56 states
States, banded by distinct broadband providers filing Form 477
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FCC Form 477 fixed broadband deployment · June 2020
Technology Breakdown
Illinois broadband technologies by reported deployment records
FCC Form 477 fixed broadband deployment data (June 2020 status)
Full technology detail
| # | Technology | Records |
|---|---|---|
| 1 | Satellite | 1,326,736 |
| 2 | Terrestrial Fixed Wireless | 464,805 |
| 3 | Cable | 286,010 |
| 4 | ADSL2+ | 273,397 |
| 5 | DSL | 260,171 |
| 6 | VDSL | 177,458 |
| 7 | Fiber | 88,024 |
| 8 | Other Copper | 246 |
| 9 | Symmetric DSL | 25 |
| 10 | 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.
High-volume peers near Illinois
High-volume peers for Illinois: states with similar filer counts and similar total deployment records (provider floor ≥10, record floor ≥10,000).
Similar provider count
Nearest states by FCC filers reporting (143 here).
Similar deployment-record total
Nearest states by summed Form 477 records (2,876,875 here), excluding the filer-count set.
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
- Why does Illinois show so many Form 477 deployment records?
- Illinois has 2,876,875 deployment records from 143 providers, upper third of the 56-state corpus (≥ 1,310,136). Dense books usually mix large cable/fiber footprints with satellite overlays.
- How does Illinois's ≥100 Mbps advertised share compare nationally?
- 21.9% of Illinois's Form 477 filings advertise ≥100 Mbps max download, versus 24.6% nationally (-2.7 pp). Tiers come from state_speed_tiers maxaddown buckets, not retail speed tests.
- What broadband technologies dominate Illinois's filings?
- satellite-led mix: fiber 3.1%, cable 9.9%, DSL 24.7%, fixed wireless 16.2%, satellite 46.1% of Form 477 records.
Read our methodology - how this data is sourced, computed, and verified.
Read with this state
- Ohio (129 filers)
- California (158 filers)
- Missouri (123 filers)
- Minnesota (115 filers)
- Mix reading guide →
What to do with Illinois's footprint
Provider count and record volume describe who files here, not what any one address can get.
- AT&T Inc. leads Illinois's filings with 473,478 records. Check its footprint across every other state it serves. AT&T Inc. profile
- Compare against Ohio, a similarly-sized state by provider count. Compare to Ohio
- Find your own speed tier and what technology mix typically delivers it. Speed tier finder
Figures are FCC Form 477 fixed-deployment data as of June 2020, the final Form 477 release, self-reported by census block. For current, address-level availability, use the FCC National Broadband Map.
State-level figures reflect reported provider footprint, not a real-time or address-level availability check.