Area Code Lookup
What Area Code Is Guilford?
Area code 475 · Connecticut
Guilford uses area code 475. It is located in Connecticut.
Area Code Serving Guilford
Frequently Asked Questions
What area code is Guilford?
Guilford uses area code 475. It is located in Connecticut.
How do I call Guilford from outside the US?
To call Guilford from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-475-XXX-XXXX). The +1 is the country code for all NANPA countries.