Area Code Lookup
What Area Code Is Chelsea?
Area code 617 · Massachusetts
Chelsea uses area code 617. It is located in Massachusetts.
Area Code Serving Chelsea
Frequently Asked Questions
What area code is Chelsea?
Chelsea uses area code 617. It is located in Massachusetts.
How do I call Chelsea from outside the US?
To call Chelsea from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-617-XXX-XXXX). The +1 is the country code for all NANPA countries.