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Public FCC data
How many spam calls do people in Illinois report? They filed 4,582 FCC complaints in 12 months, 17th most per person.
From October 2025 to September 2026, people in Illinois filed 4,582 unwanted-call complaints with the FCC, or 36.0 for every 100,000 residents, which ranks 17th among the 50 states and DC. 676 of the 2,210 complaints that gave a caller ID (31%) named one area code, 630 (Naperville, Aurora and the western suburbs of Chicago, Illinois).
- 4,582unwanted-call complaints filed with the FCC by people in Illinois, October 2025 to September 2026
- 36.0complaints for every 100,000 residents, 17th of 51 (the whole country: 36.6)
- 630the area code people there named most, on 676 complaints (Naperville, Aurora and the western suburbs of Chicago, Illinois)
Source: Federal Communications Commission, CGB - Consumer Complaints Data (dataset 3xyp-aqkj), issue "Unwanted Calls", read on November 4, 2026. Population: U.S. Census Bureau, Vintage 2025. All sources.
People in Illinois reported area code 630 most, and 7 of the 10 busiest area codes are in Illinois.
Each row counts the complaints from people in Illinois whose caller ID started with that code. 3 codes in the list are toll-free and belong to no place. Together these 10 codes account for 1,200 of the 2,210 complaints that gave a caller ID.
| Rank | Code | Where it is | In Illinois? | Complaints |
|---|---|---|---|---|
| 1 | 630 | Naperville, Aurora and the western suburbs of ChicagoIn Illinois | Yes | 676 |
| 2 | 773 | ChicagoIn Illinois | Yes | 80 |
| 3 | 708 | The south and west suburbs of ChicagoIn Illinois | Yes | 71 |
| 4 | 833 | Toll-free, tied to no placeNo place | No place | 64 |
| 5 | 815 | Rockford, Joliet and northern IllinoisIn Illinois | Yes | 63 |
| 6 | 217 | Springfield, Champaign and DecaturIn Illinois | Yes | 58 |
| 7 | 618 | Belleville and southern IllinoisIn Illinois | Yes | 51 |
| 8 | 312 | Downtown ChicagoIn Illinois | Yes | 47 |
| 9 | 877 | Toll-free, tied to no placeNo place | No place | 46 |
| 10 | 855 | Toll-free, tied to no placeNo place | No place | 44 |
Monthly complaints from Illinois rose from 279 in December to 524 in September.
October 2025 and November 2025 are shaded and dotted because the FCC file holds only 323 and 16,267 complaints of any kind in those months, against about 29,400 in a usual one.
Complaints from Illinois by month
Unwanted-call complaints filed from Illinois per month, October 2025 to September 2026.
- Complaints filed from Illinois
- Months the FCC file is thin
| Month | All complaints |
|---|---|
| October 2025 | 1 |
| November 2025 | 281 |
| December 2025 | 279 |
| January 2026 | 365 |
| February 2026 | 374 |
| March 2026 | 461 |
| April 2026 | 440 |
| May 2026 | 407 |
| June 2026 | 451 |
| July 2026 | 523 |
| August 2026 | 476 |
| September 2026 | 524 |
Prerecorded calls make up 48% of the complaints from Illinois, above the 41% across the country.
The FCC files robocalls, live callers and texts under one issue, "Unwanted Calls". The bar shows how the 4,582 complaints from Illinois split by what the person says reached them.
What reached people in Illinois
How the 4,582 complaints from Illinois split.
- Prerecorded call48% · 2,214 complaints
- Live caller23% · 1,060 complaints
- Text message15% · 673 complaints
- Kind not stated14% · 635 complaints
Across the country the split is prerecorded call 41%, live caller 26%, text message 15%, kind not stated 17%.
Most of the US numbers people in Illinois reported carry an Illinois area code, 1,222 of 1,920 (64%), against 50% across the country.
Of 2,210 complaints that gave a caller ID, 1,222 named an Illinois code, 698 a code from another state, 265 a toll-free code and 25 something else, such as a special-use code, a number abroad or a prefix that is not assigned.
Where the numbers people in Illinois reported came from
Where the 2,210 caller ID numbers from Illinois came from.
- Illinois area codes55% · 1,222 complaints
- Other states' area codes32% · 698 complaints
- Toll-free codes12% · 265 complaints
- Other or not assigned1% · 25 complaints
After Illinois, people there named California, New York and Florida codes most.
Illinois ranks 17th of 51 for complaints per 100,000 people, between Alabama and Mississippi.
Colorado leads the list at 109.8 and North Dakota is last at 13.8. The 50 states and DC together file 36.6.
Illinois next to the states ranked around it
Complaints for every 100,000 residents, the states ranked next to Illinois.
Here is what to do when a spam call reaches you in Illinois.
See why so many calls reach you
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Get a number with an Illinois area code
Each of these area codes of Illinois has a page that shows how to get a number in it that rings the phone you already carry.
These are the questions people ask about spam calls in Illinois, answered from the data.
4,582 unwanted-call complaints from October 2025 to September 2026, which is 36.0 for every 100,000 residents. That ranks 17th among the 50 states and DC per person and ninth by total count.
630 (Naperville, Aurora and the western suburbs of Chicago, Illinois) was named on 676 complaints, 31% of the complaints that gave a caller ID number. Next were 773 (Chicago, Illinois) with 80 and 708 (The south and west suburbs of Chicago, Illinois) with 71.
Mostly. 64% of the complaints that named a US area code carried an Illinois code, against 50% across the country. After Illinois, the area codes named most belonged to California (76), New York (67) and Florida (51). Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
48% were about prerecorded calls, 23% about a live caller and 15% about text messages, and 14% did not say. Across the country the split is 41%, 26% and 15%.
Yes. People in Illinois filed 1,523 complaints in July to September 2026, 27% more than the 1,200 in January to March 2026. For the whole country the change over the same months was up 28%.
File a complaint with the FCC's Consumer Help Center at consumercomplaints.fcc.gov. Complaints filed there are the ones counted on this page, listed by the state of the person who filed. To report a scam or fraud call, use ReportFraud.ftc.gov.
A state with more people files more complaints just by being bigger. Dividing by the Census Bureau's July 1, 2025 estimate for Illinois (12,719,141 residents) puts every state on one scale, which is why Illinois ranks 17th per person and ninth by total count.
Every number on this page comes from two public sources.
The complaints come from the FCC.
Federal Communications Commission, CGB - Consumer Complaints Data (dataset 3xyp-aqkj), issue "Unwanted Calls", filed October 1, 2025 to September 30, 2026, read from opendata.fcc.gov on November 4, 2026.
The population comes from the Census Bureau.
U.S. Census Bureau, Population Division, Annual Estimates of the Resident Population for the United States, Regions, States, District of Columbia, and Puerto Rico: April 1, 2020 to July 1, 2025 (NST-EST2025-POP), Vintage 2025 estimate for July 1, 2025, released January 2026, checked November 2026.
Data: FCC Consumer Complaints, Oct 2025 to Sep 2026, analysed by ExpressNumber. www.expressnumber.com/spam-calls-by-state/illinois
See every state ranked
All 50 states and DC by complaints per 100,000 people, with Illinois marked.
See which area codes send the most
The 25 busiest local area codes, the toll-free codes and a search of every code in the data.
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