Numbers with this prefix were first introduced in 1996.
While 6158212590 was originally issued with the info above, the owner of the phone number (615) 821-2590 may have transferred it through a process called porting.
They are a robo caller insisting you call them back to discuss "a threat on your social security number." Yeah right. Don't pick up their call and DON'T give them your social!
Arizona