Area Code Lookup
What Area Code Is Naperville?
Area code 630 · Illinois
Naperville uses area code 630. It is located in Illinois.
Area Code Serving Naperville
Frequently Asked Questions
What area code is Naperville?
Naperville uses area code 630. It is located in Illinois.
How do I call Naperville from outside the US?
To call Naperville from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-630-XXX-XXXX). The +1 is the country code for all NANPA countries.