Area Code Lookup
What Area Code Is Darien?
Area code 203 · Connecticut
Darien uses area code 203. It is located in Connecticut.
Area Code Serving Darien
Frequently Asked Questions
What area code is Darien?
Darien uses area code 203. It is located in Connecticut.
How do I call Darien from outside the US?
To call Darien from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-203-XXX-XXXX). The +1 is the country code for all NANPA countries.