Prefix Information
The prefix 400 is part of area code 470 serving Atlanta, Georgia.
This exchange contains 10,000 possible phone numbers (470-400-0000 through 470-400-9999).
Phone numbers with prefix 400 in area code 470. Location: Atlanta, Georgia.
The prefix 400 is part of area code 470 serving Atlanta, Georgia.
This exchange contains 10,000 possible phone numbers (470-400-0000 through 470-400-9999).