Area Code Lookup
What Area Code Is Wheaton?
2 area codes serve Wheaton · Illinois
Wheaton is served by area codes 331, 630. It is located in Illinois.
Area Codes Serving Wheaton
Frequently Asked Questions
What area code is Wheaton?
Wheaton is served by area codes 331, 630. It is located in Illinois.
Why does Wheaton have multiple area codes?
As demand for phone numbers increased, NANPA added area codes through splits (dividing the region) or overlays (layering a new code over the same geography). Wheaton now has 2 area codes — 331 and 630 — covering the same or overlapping areas.
How do I call Wheaton from outside the US?
To call Wheaton from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-331-XXX-XXXX). The +1 is the country code for all NANPA countries.