Area Code Lookup
What Area Code Is Kingsport?
Area code 423 · Tennessee
Kingsport uses area code 423. It is located in Tennessee.
Area Code Serving Kingsport
Frequently Asked Questions
What area code is Kingsport?
Kingsport uses area code 423. It is located in Tennessee.
How do I call Kingsport from outside the US?
To call Kingsport from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-423-XXX-XXXX). The +1 is the country code for all NANPA countries.