Area Code Lookup
What Area Code Is Olney?
Area code 618 · Illinois
Olney uses area code 618. It is located in Illinois.
Area Code Serving Olney
Frequently Asked Questions
What area code is Olney?
Olney uses area code 618. It is located in Illinois.
How do I call Olney from outside the US?
To call Olney from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-618-XXX-XXXX). The +1 is the country code for all NANPA countries.