Prefix Information
The prefix 603 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-603-0000 through 718-603-9999).
Phone numbers with prefix 603 in area code 718. Location: Brooklyn, New York.
The prefix 603 is part of area code 718 serving Brooklyn, New York.
This exchange contains 10,000 possible phone numbers (718-603-0000 through 718-603-9999).