Tennessee Area Codes – List Of Area Codes & Map

Tennessee is Officially using 7 Tennessee Area Codes. In Which 1 Of Them Are Overlay Codes. Tennessee originally has one area code 901 Which Covers The Entire State, when the numbering system was established in 1947. After Increasing in Population to meet the demand 6 other Tennessee Area Codes Are Establish. The most recently added was 629 in 2015 as an overlap of 615 And Today Area Code 615 Is the Most Populated Areas with 1.7 million of the state 6.4 million residents.

Tennessee Area Codes-

Tennessee Currently Utilizing 7 Tennessee Area Codes Which Are:-

The Regions Which Are Covered By Tennessee Area Codes

423 – Johnson City, Chattanooga, Kingsport, Bristol Originally divided from 615 in 1995.

615 and 629 (overlap) – Greater Nashville, including Murfreesboro, 615 originally divided from 901 in 1954. The 629 overlaps entire area code was enacted active in 2015

731 – Jackson, Dyersburg, Union City Initially divided from 901 in 2001.

865 – Knoxville, Originally divided from 423 in 1999.

901 – Memphis, An first NANPA area code, originally covers the entire state in 1947.

931 – Columbia, Manchester, Cookeville, Initially divided from 615 in 1997.

History & Changes In Tennessee Area Codes

In 01/01/1947 – Area code 901 was set into service. Area code 901 has been divided 2 times. In 1954 area code 901 was divided to form area code 615. Then In 2001 area code 901 was divided to form area code 731.

In 01/01/1954 – Area code 615 was placed into service. Area code 615 was formed from a division of area code 901. In 1995 area code 615 was divided to form area code 423. Then In 1997 area code 615 was divided to make area code 931.

In 09/11/1995 – Area code 423 was assigned into service. Area code 423 was formed from a division of area code 615. In 1999 area code 423 was split to make area code 865.

In 09/15/1997 – Area code 931 was settled into service. Area code 931 was formed from a division of area code 615.

In 11/01/1999 – Area code 865 was seated into service. Area code 865 was created from a division of area code 423.

In 02/12/2001 – Area code 731 was set into service. Area code 731 was formed from a split of area code 901.

In 03/28/2015 – Area code 629 was placed into service as an overlap of area code 615.

Tennessee Area Codes

What Is Area Code?

Area code is a three-digit code in which the US and other countries are divided. It is Also a local telephone dialing code where They Call each other With These Codes.

Why are area codes added?

When The Current Area Codes Expires Or Increase in the use of cellular phones, modems, and Internet access It Creates Problems. So That why Area Codes Are Added And each area code has a potential capacity of about 8 million unique phone numbers


Once The new Area Codes Rae assigned there is usually a 6 Months Period To Move. At that time Customers Are Encouraged To Use The Code But Seven Digit Dialling is Allowed. After 6 Months customers are required to use the new telephone no.

Also, See Other Area Codes

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