The original message was sent by 2399615779, that number is fake. The SPAM SMS phone number is 305-303-0119.

The message is 2399615779: CELL 305-303-0119 WE BUY JUNK CARS $450 COMPRO CARROS $450.

The number belongs to Metro-PCS, this was confirmed by Metro-PCS when I reported the issue to them.

The business associated with this number seems to be:

Hardwell Industrial Corporation
3412 W. 84th St.
Hialeah, FL 33018