Area code 640
Area code 640 is a telephone area code in the North American Numbering Plan. It serves New Jersey, the United States.
- 640area code
- NJNew Jersey
- UScountry
- 17-Sep-18in service
How to dial a 640 number
From within the United States and Canada, dial 1, then 640, then the seven-digit number. From another country, dial your international access code, then +1 640 and the seven-digit number.
Area code 640 covers the same territory as 609. When several area codes share one area like this, it is called an overlay.
Other area codes in New Jersey
201, 551, 609, 732, 848, 856, 862, 908, 973
Frequently asked questions
Where is area code 640?
Area code 640 serves New Jersey, the United States.
What is the country code for a 640 number?
Numbers with North American area codes use the country calling code +1.