Prefix Information
The prefix 340 is part of area code 731 serving Jackson, Tennessee.
This exchange contains 10,000 possible phone numbers (731-340-0000 through 731-340-9999).
Phone numbers with prefix 340 in area code 731. Location: Jackson, Tennessee.
The prefix 340 is part of area code 731 serving Jackson, Tennessee.
This exchange contains 10,000 possible phone numbers (731-340-0000 through 731-340-9999).