847 Area Code: Northbrook, Illinois
Area code 847 serves Northbrook, Roselle and Arlington Heights, Illinois in the Central time zone, in service since 1996. Consumers have filed 4,254 unwanted-call complaints against 3,378 different 847 numbers, 475 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 847 at a glance
- State
- Illinois
- Main cities
- Northbrook, Roselle, Arlington Heights, Elk Grove, Waukegan, Des Plaines + 39 more
- Counties
- Cook County, Lake County, DuPage County, Kane County + 1 more
- Local time
- —Central
- In service since
- January 20, 1996
- Split from
- 708
- Overlay code
- 224 (2002)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 46 rate centers, 786 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 847 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
What calls from 847 numbers are about
1,064 FTC Do Not Call complaints about 847 numbers since Jul 24. The most common named subject is impostor calls (people pretending to be a government agency, a business or family), at 12% of complaints (68% of those were recorded messages). Overall, 66% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified45343%
- No subject given13413%
- Impostor (government, business, family)13112%
- Dropped call / no message12111%
- Medical & prescriptions757%
- Debt reduction696%
- Home improvement & cleaning394%
FCC complaints by call type, last 2 years
- Live Voice8551%
- Prerecorded Voice5634%
- Text Message2616%
16% of recent FCC complaints about 847 numbers are about text messages, not calls.
When 847 spam calls come in
34% of complaints that give a call time describe calls between 10am and 1pm. 95% came Monday to Friday, most on Wednesdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
496 FTC complaints about 847 numbers in the last four weeks, up 36% on the four weeks before. FCC complaints about 847 numbers peaked in 2015 (587); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
64% of the FTC complaints about 847 numbers came from people whose own phone number also starts with 847, and 81% from Illinois. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Where complainants live
- Illinois86581%
- Wisconsin212%
- California202%
- Florida151%
- Texas131%
What people with 847 numbers report
People whose own number starts with 847 filed 3,073 FTC complaints since Jul 24. 22% were about calls showing another 847 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 847 (same code)67722%
- 2241284%
- 708983%
- 833 (toll-free)893%
- 877 (toll-free)773%
Busiest 847 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (847) 449-xxxx | 10 | 10 | Commio, LLC | Cary |
| (847) 786-xxxx | 10 | 9 | Teleport Communications America, LLC | Glencoe |
| (847) 865-xxxx | 10 | 9 | Level 3 (Lumen) | Wauconda |
| (847) 907-xxxx | 9 | 9 | T-Mobile USA | Palatine |
| (847) 595-xxxx | 7 | 3 | Ameritech (AT&T) | Bensenville |
Carriers operating in 847
NANPA has assigned 786 847 prefixes (NPA-NXX central-office codes) across 46 rate centers: 26% to wireless carriers, 74% to landline and VoIP operators; 52% are pooled blocks shared by several carriers. 1 prefix was assigned in the last 12 months (newest 2026-03-17). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Ameritech (AT&T) | Incumbent landline (ILEC) | 361(46%) | 43 | 2011-02-10 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 80(10%) | 7 | 2025-09-05 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 57(7%) | 34 | 2023-08-30 |
| T-Mobile USA | Wireless | 54(7%) | 10 | 2005-02-16 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 46(6%) | 26 | 2005-02-10 |
| MCImetro (Verizon Business) | Competitive / VoIP (CLEC) | 44(6%) | 27 | — |
| Verizon Wireless (Cellco Partnership) | Wireless | 39(5%) | 5 | 2010-07-29 |
| PAETEC (Windstream) | Competitive / VoIP (CLEC) | 26(3%) | 18 | 2009-11-03 |
| MCImetro (Verizon Business) | Competitive / VoIP (CLEC) | 23(3%) | 13 | — |
| Spok, INC. | Wireless | 18(2%) | 5 | — |
| American Messaging Services, LLC | Wireless | 8(1%) | 2 | 2001-04-23 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 6(1%) | 4 | 2010-10-06 |
Largest rate centers (exchanges) by prefixes: Northbrook (122), Roselle (87), Arlington Heights (38), Elk Grove (37), Waukegan (33), Des Plaines (32), Skokie (31), Wheeling (31), Palatine (24), Elgin (23). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 847 numbers
Before you call back
- Impostor (government, business, family) is the top named complaint here. Hang up and call the agency, bank or relative back on a number you already know. Government agencies don't demand payment by gift card, wire transfer or crypto. Read about Social Security impostor calls and fake bank fraud calls.
- Look up the full number above. A missed call from 847 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- If it looks like a neighbor's number, it may be spoofed. See calls from your own area code.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Illinois
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Illinois Attorney General.
- Illinois formally adopted the FTC's National Do Not Call Registry as its own state list rather than running a separate one, so a single free registration at donotcall.gov covers you. State authorities can still enforce against telemarketers who ignore it, in addition to any federal penalty.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 847: questions answered from the data
Where is area code 847?
Area code 847 serves Northbrook, Roselle and Arlington Heights, Illinois, covering Cook County, Lake County and DuPage County and 2 more counties. It has been in service since January 20, 1996. It was split from area code 708.
What time zone is area code 847 in?
Area code 847 is in the Central time zone (UTC−6, or UTC−5 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 847?
224 (in service 2002) serves the same area as 847. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 847 numbers usually about?
Since Jul 24, consumers filed 1,064 FTC Do Not Call complaints about 847 numbers. The most common named subject was impostor calls (people pretending to be a government agency, a business or family): 12% of complaints, 68% of them recorded messages. Across all subjects, 66% of callers who answered the question said the call was a robocall.
When do 847 spam calls happen?
34% of the complaints that give a call time describe calls between 10am and 1pm, and 95% came on weekdays, most often on Wednesday. Times are as consumers reported them.
Are calls from 847 numbers really local?
Not necessarily. 64% of the FTC complaints about 847 numbers came from people whose own phone number also starts with 847, and 81% from Illinois. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Are 847 robocalls increasing?
In the four weeks to Oct 8, consumers filed 496 FTC complaints about 847 numbers, 36% more than the four weeks before.
How do I report an 847 scam call in Illinois?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Illinois, the Illinois Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Overlay and nearby area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.