Answered the call, thinking it might be due to my daughters search for a kidney donor at UCSF. No one on the line. After a few seconds a voice said goodbye. It is a number no longer in service.

Same as green gene,..  I suspect a flood of calls now.  Phishing is my thought.

Same, obviously scam #

Caller left no msg. As above, am blocking.

These guys constantly calling with the HVAC Customer Appreciation week story.
Call and then hangup.
Have asked in past to delete us from database. Ignored.
Talked to a guy to today and told him to quite calling, hungup. He called back and told me "F*** You."
Don't pick up. Its a scam.