Area Code Lookup
What Area Code Is Dunnville?
Area code 365 · Ontario
Dunnville uses area code 365. It is located in Ontario.
Area Code Serving Dunnville
Frequently Asked Questions
What area code is Dunnville?
Dunnville uses area code 365. It is located in Ontario.
How do I call Dunnville from outside the US?
To call Dunnville from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-365-XXX-XXXX). The +1 is the country code for all NANPA countries.