Prefix Information
The prefix 340 is part of area code 870 serving Jonesboro, Arkansas.
This exchange contains 10,000 possible phone numbers (870-340-0000 through 870-340-9999).
Phone numbers with prefix 340 in area code 870. Location: Jonesboro, Arkansas.
The prefix 340 is part of area code 870 serving Jonesboro, Arkansas.
This exchange contains 10,000 possible phone numbers (870-340-0000 through 870-340-9999).