Area codes in Schaumburg, Illinois
Schaumburg, Illinois uses 2 area codes — 847 and 224. The main Schaumburg area code is 847.
Area codes serving Schaumburg
Phone numbers in Schaumburg are written as ten digits — for example (847) 555-0190 — and fall in the Central Time zone.
How Schaumburg came to have 2 area codes
The original Schaumburg area code is 847, in service since 1996. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 224 (2002). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Schaumburg now uses all 2 codes and every local call is dialed with ten digits.
All Illinois area codes · Is a Schaumburg call a scam?
Nearby cities
- Naperville area codes
- Evanston area codes
- Chicago area codes
- Joliet area codes
- DeKalb area codes
- Kenosha area codes
- Hammond area codes
- Racine area codes
More cities in Illinois
Frequently asked questions
What is the area code for Schaumburg?
The main area code for Schaumburg, Illinois is 847. Schaumburg is now served by 2 area codes in total: 847, 224.
How many area codes does Schaumburg have?
Schaumburg has 2 area codes: 847, 224.
Why does Schaumburg have more than one area code?
As Schaumburg used up the numbers available in its original area code (847, in service since 1996), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Schaumburg number?
Dial all 10 digits — the area code (847 or 224) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.