Prefix Information
The prefix 340 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-340-0000 through 718-340-9999).
Phone numbers with prefix 340 in area code 718. Location: Brooklyn, New York.
The prefix 340 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-340-0000 through 718-340-9999).