Prefix Information
The prefix 813 is part of area code 865 serving Knoxville, Tennessee.
This exchange contains 10,000 possible phone numbers (865-813-0000 through 865-813-9999).
Phone numbers with prefix 813 in area code 865. Location: Knoxville, Tennessee.
The prefix 813 is part of area code 865 serving Knoxville, Tennessee.
This exchange contains 10,000 possible phone numbers (865-813-0000 through 865-813-9999).