Area Code Lookup
What Area Code Is Keene?
Area code 603 · New Hampshire
Keene uses area code 603. It is located in New Hampshire.
Area Code Serving Keene
Frequently Asked Questions
What area code is Keene?
Keene uses area code 603. It is located in New Hampshire.
How do I call Keene from outside the US?
To call Keene 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.