Prefix Information
The prefix 399 is part of area code 609 serving Trenton, New Jersey.
This exchange contains 10,000 possible phone numbers (609-399-0000 through 609-399-9999).
Phone numbers with prefix 399 in area code 609. Location: Trenton, New Jersey.
The prefix 399 is part of area code 609 serving Trenton, New Jersey.
This exchange contains 10,000 possible phone numbers (609-399-0000 through 609-399-9999).