Question 1

What is the area code for Johnson City?

Accepted Answer

The main area code for Johnson City, Tennessee is 423. Johnson City is now served by 2 area codes in total: 423, 729.

Question 2

How many area codes does Johnson City have?

Accepted Answer

Johnson City has 2 area codes: 423, 729.

Question 3

Why does Johnson City have more than one area code?

Accepted Answer

As Johnson City used up the numbers available in its original area code (423, in service since 1995), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a Johnson City number?

Accepted Answer

Dial all 10 digits — the area code (423 or 729) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.

Area codes in Johnson City, Tennessee

Area codes serving Johnson City

Nearby cities