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US area code · Illinois

Area code 224

Where the 224 area code is, its overlay and how to dial a +1 224 number from anywhere.

CoversAlgonquin, IllinoisTime zoneCentral (CT)TypeOverlay
Quick answer

The 224 area code is in Algonquin, Illinois, United States (Central (CT)). To call from abroad: +1 224 555-0123. It is an overlay, so all 10 digits are dialled.

StateIllinois
Main areaAlgonquin
Time zoneCentral (CT)
TypeOverlay
10-digit dialingRequired
In service since01-May-1998

The 224 area code is a geographic North American Numbering Plan (NANP) code covering Algonquin, Illinois. It has been in service since 01-May-1998 and sits in the Central (CT) time zone.

Overlay 224 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.

224847

How to dial a 224 number

From abroad+1 224 555-0123
Within the US / Canada1 224 555-0123
Locally (same area)224 555-0123

Cities in the 224 area code

A 224 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

217309312331447464618630708730773779815847861872

Frequently asked questions

Where is the 224 area code?

The 224 area code is in Algonquin, Illinois, United States (Central (CT)).

Is 224 an overlay area code?

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

Do I have to dial 10 digits for 224?

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

How do I call a 224 number from another country?

Dial your exit code (or +), then 1, then 224, then the number: +1 224 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 224 number does not pinpoint a street or ZIP code.

Missed a call from +1 224?

In the 30 days to September 24, 2026, 496 unwanted calls showing a 224 number were reported to the US Federal Trade Commission, 62% of them recorded messages or robocalls. That puts 224 at #207 of 670 area codes reported.

Other176
Reducing your debt (credit cards, mortgage, student loans)114
Dropped call or no message61
Calls pretending to be government, businesses, or family and friends48
Before you call back
  • If you do not know anyone in Illinois, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 224 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 224 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 224:

T-Mobile USA, Inc. 138New Cingular Wireless PCS, LLC 92Cellco Partnership Dba Verizon Wireless 76Onvoy, LLC 67Illinois Bell Tel Co 34Fractel, LLC 29

About 50.2% of the 609 prefixes in use belong to mobile carriers: a 224 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 224 — cities & rate centres