Prefix Information
The prefix 840 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-840-0000 through 718-840-9999).
Phone numbers with prefix 840 in area code 718. Location: Brooklyn, New York.
The prefix 840 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-840-0000 through 718-840-9999).