Brentwood, TN is currently using one area code which is area code 615. Area Code 615 was created from a split of area code 901 and was placed into service on January 1, 1954.
In addition to Brentwood, TN area code 615 serves central Tennessee and the Nashville metropolitian area including the larger cities and communities of Brentwood, Franklin, Gallatin, Hendersonville, Lebanon, Murfreesboro, and Smyrna in addition to many smaller communities within the area code 615 service area.
Brentwood, TN is located in Williamson County and observes the Central Time Zone.
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