Who called from 3074816538

Called while talking on phone so went to voicemail.  Caller did not leave message.

Same

Rcd call, left no msg.  Called the number back / vm says, "this is un allocated "
Blocked them from future calls... Duh!!!

Two calls in a row. Didn't answer, left no message.

same as others---got the call, didn't answer, they didn't leave message. typically, this is a credit card scam for me. I get these once every couple weeks from different numbers all over country, always starting with same recorded message: "hello. This is _________ credit card company. There is nothing wrong with your credit card right now, but...."