Area Code Lookup
What Area Code Is Cohasset?
Area code 339 · Massachusetts
Cohasset uses area code 339. It is located in Massachusetts.
Area Code Serving Cohasset
Frequently Asked Questions
What area code is Cohasset?
Cohasset uses area code 339. It is located in Massachusetts.
How do I call Cohasset from outside the US?
To call Cohasset from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-339-XXX-XXXX). The +1 is the country code for all NANPA countries.