Area Code Lookup
What Area Code Is Warrenton?
Area code 540 · Virginia
Warrenton uses area code 540. It is located in Virginia.
Area Code Serving Warrenton
Frequently Asked Questions
What area code is Warrenton?
Warrenton uses area code 540. It is located in Virginia.
How do I call Warrenton from outside the US?
To call Warrenton from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-540-XXX-XXXX). The +1 is the country code for all NANPA countries.