Area Code Lookup
What Area Code Is Port Jefferson?
Area code 934 · New York
Port Jefferson uses area code 934. It is located in New York.
Area Code Serving Port Jefferson
Frequently Asked Questions
What area code is Port Jefferson?
Port Jefferson uses area code 934. It is located in New York.
How do I call Port Jefferson from outside the US?
To call Port Jefferson from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-934-XXX-XXXX). The +1 is the country code for all NANPA countries.