Skip to content
Country Dialing CodesA clearer way to call the world
AboutContact
Español — prefijos-telefonicos.comFrançais — indicatifs-telephoniques.net
US area code · Illinois

847 area code

Where the 847 area code is, its overlay and how to dial a +1 847 number from anywhere.

CoversAlgonquin, IllinoisTime zoneCentral (CT)TypeOverlay
Quick answer

The 847 area code is in Algonquin, Illinois, United States (Central (CT)). To call from abroad: +1 847 555-0123. It is an overlay, so all 10 digits are dialled.

StateIllinois
Main areaAlgonquin
Time zoneCentral (CT)
TypeOverlay
10-digit dialingRequired
In service since27-Jul-1995

The 847 area code is a geographic North American Numbering Plan (NANP) code covering Algonquin, Illinois. It has been in service since 27-Jul-1995 and sits in the Central (CT) time zone.

Overlay 847 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

847224708

How to dial a 847 number

From abroad+1 847 555-0123
Within the US / Canada1 847 555-0123
Locally (same area)847 555-0123

Cities in the 847 area code

A 847 number is usually in one of these places in Illinois — 4 counties.

Algonquin MchenryArlington Heights CookBuffalo Grove LakeCarpentersville KaneDes Plaines CookElk Grove Village CookEvanston CookGlenview CookGurnee LakeHighland Park LakeHoffman Estates CookLake Forest LakeLake in the Hills MchenryLibertyville LakeMorton Grove CookMount Prospect CookMundelein LakeNiles CookNorth Chicago LakeNorthbrook CookPalatine CookPark Ridge CookRolling Meadows CookRound Lake BeachSchaumburg CookSkokie CookSouth Elgin KaneVernon Hills LakeWaukegan LakeWheeling CookWilmette CookZion Lake

Other Illinois area codes

217224309312331447464618630708730773779815861872

Frequently asked questions

Where is the 847 area code?

The 847 area code is in Algonquin, Illinois, United States (Central (CT)).

Is 847 an overlay area code?

Yes. 847 overlays the same region as 224, 708, so callers dial all 10 digits.

Do I have to dial 10 digits for 847?

Yes — dial the area code plus the seven-digit number.

How do I call a 847 number from another country?

Dial your exit code (or +), then 1, then 847, then the number: +1 847 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 847 number does not pinpoint a street or ZIP code.

Number holders in area code 847

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 799 prefixes are in use in 847, shared by 23 companies. The largest holders:

CompanyPrefixesShare
Illinois Bell Tel Co36145%
New Cingular Wireless PCS, LLC8010%
Teleport Communications America, LLC577%
T-Mobile USA, Inc.547%
Level 3 Communications, LLC466%
Mcimetro Access Transmission Services LLC446%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 847 numbers

Reports to the FTC, last 30 days
504
Recorded messages or robocalls
65%
Rank among area codes
#201 of 670
Most reported subjects
Other (184)
Calls pretending to be government, businesses, or family and friends (70)
Dropped call or no message (61)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

All US area codes United States +1 Map of area code 847 — cities & rate centres

Explore by continent