I am ASSUMING these people are spoofing the number and are part of the group that called and left a message from 917 387 1153. No message was left and  I called back the number from a pay phone and got a recorded message stating "this phone number has been disconnected."
Whatever happens do not call this number from a land line or cell phone because then they will have your name for sure and can potentially do more damage.
They are probably just calling numbers out of the blue, at random, because this call was to my TMobile cell phone.