Prefix Information
The prefix 640 is part of area code 917 serving New York City, New York.
This exchange contains 10,000 possible phone numbers (917-640-0000 through 917-640-9999).
Phone numbers with prefix 640 in area code 917. Location: New York City, New York.
The prefix 640 is part of area code 917 serving New York City, New York.
This exchange contains 10,000 possible phone numbers (917-640-0000 through 917-640-9999).