Who called from 4783280533

Called twice in one day, left no message.  When I called back it only rings multiple times and then shuts off.

I also received two calls in one day, no voicemail left.

I did not answer this call b/c I did not recognize the number. They left me a message. It was GA Determatology (automated voice) calling to verify an appointment I had a few days later at their office in Tifton, GA.

GA Dermatology! Line was busy when I called back

It's georgia dermatology confirming an appointment. Yoi can't call the number back because it's an automated outgoing line only