Prefix Information
The prefix 304 is part of area code 862 serving Newark, New Jersey.
This exchange contains 10,000 possible phone numbers (862-304-0000 through 862-304-9999).
Phone numbers with prefix 304 in area code 862. Location: Newark, New Jersey.
The prefix 304 is part of area code 862 serving Newark, New Jersey.
This exchange contains 10,000 possible phone numbers (862-304-0000 through 862-304-9999).