I recently transferred my line over from ATT to Verizon. I have had the same number for years and have had no issues. Since I switched to Verizon my phone has been making random calls to people I don't know. I had a lady call me terribly upset stating that I disturbed her.
I have a Samsung Galaxy S7 Edge.
At first, I thought my husband was pulling a prank on me until today. Today, I found another woman, in a different state that experienced the same issue 1 day after me. She too has an Android phone.