Prefix Information
The prefix 399 is part of area code 417 serving Springfield, Missouri.
This exchange contains 10,000 possible phone numbers (417-399-0000 through 417-399-9999).
Phone numbers with prefix 399 in area code 417. Location: Springfield, Missouri.
The prefix 399 is part of area code 417 serving Springfield, Missouri.
This exchange contains 10,000 possible phone numbers (417-399-0000 through 417-399-9999).