I waited for the caller to say something and they simply hung up I blocked this number
Caller kept saying "Hello" and then hung. She then called back and repeated the scenario, except she added, "Can you hear me?" When I said "yes" she hung up. I called the number and some answered with my given name saying "Hello (name)". When I demanded to know who she was, she said "Nobody" and hung up. I reported this call to my carrier, ATT
Unsafe caller. Likely scam or fraud. Doesn't leave msg and when you try to return the call, are told number is not in service. Red flags!