Prefix Information
The prefix 421 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-421-0000 through 718-421-9999).
Phone numbers with prefix 421 in area code 718. Location: Brooklyn, New York.
The prefix 421 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-421-0000 through 718-421-9999).