A new area code was approved by the Tennessee Regulatory Authority on October 23, 2013 as the relief method for existing NPA 615 serving a portion of nothern Tennessee with cities such as Gallatin, Murfreesboro or Nashville. The new 629 NPA will cover the same towns and cities of TN and will enter service on March 28, 2015.
Residents of these areas will soon be able to dial local calls only by using 10 digit dialing. Currently both 7 and 10 digit dialing may be used until February 28, 2015.
- July 26, 2014 – start of permissive dialing (7 and 10 digit dialing are permitted for local calls between area code 615 phone numbers)
- February 28, 2015 – end of permissive dialing period (10 digit dialing becomes mandatory)
- March 28, 2015 – area code 629 enters service
See official NANPA announcement and area code map (PDF document)