Area Code Lookup
What Area Code Is Nashua?
Area code 603 · New Hampshire
Nashua uses area code 603. It is located in New Hampshire.
Area Code Serving Nashua
Frequently Asked Questions
What area code is Nashua?
Nashua uses area code 603. It is located in New Hampshire.
How do I call Nashua from outside the US?
To call Nashua from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-603-XXX-XXXX). The +1 is the country code for all NANPA countries.