Area Code Lookup
What Area Code Is Dumont?
Area code 551 · New Jersey
Dumont uses area code 551. It is located in New Jersey.
Area Code Serving Dumont
Frequently Asked Questions
What area code is Dumont?
Dumont uses area code 551. It is located in New Jersey.
How do I call Dumont from outside the US?
To call Dumont from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-551-XXX-XXXX). The +1 is the country code for all NANPA countries.