Area Code Lookup
What Area Code Is Greeneville?
Area code 423 · Tennessee
Greeneville uses area code 423. It is located in Tennessee.
Area Code Serving Greeneville
Frequently Asked Questions
What area code is Greeneville?
Greeneville uses area code 423. It is located in Tennessee.
How do I call Greeneville from outside the US?
To call Greeneville 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.