Area Code Lookup
What Area Code Is Waterbury?
Area code 203 · Connecticut
Waterbury uses area code 203. It is located in Connecticut.
Area Code Serving Waterbury
Frequently Asked Questions
What area code is Waterbury?
Waterbury uses area code 203. It is located in Connecticut.
How do I call Waterbury from outside the US?
To call Waterbury 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.