Who called from 2184614675

Called, hung up when I didn't answer. No message.

Left message, sounded like a serial killer or stalker...heavy breathing, call about social media use

Called and left a message which was nothing but static. No words.

Male caller started asking how often I used social media.  His voice sounded somewhat like actor Lee Majors.  (Majors was in TV shows: The Big Valley, Fall Guy, and 6 Million Dollar Man).
Voice sounded live, but smoothly stated that "it was pre-recorded to make the answering process faster."  When I didn't answer the first question by pressing a button, it hung up.  I am suspicious of the true motive of this call.

Left message asking about how often I use social media.  Asking for response by pressing numbers.  Cut off after 32 seconds.