This number just called me, the American lady on the other end of the line knew my name, I hung up

I live in Sydney, Australia, receive a phone this morning, I did not answer it because I don't k ke anyk e in New Yor, the caller didn't leave any message, think it must be a scammers.

I live in Australia this number +1 (646) 381-2075
NY, USA called me at 7am I was asleep as its school holidays would have been an expensive call had I answered

I have just recieved this call and they hung up and my son as re-dialed it n they wouldnt tell me who it was

I think they called me because once in January maybe, I subscribe for a sort of sponsor on Instagram with beauty or something, but I didn't know that I would have to order something on the internet which I can't so I didn't continue but I wasn't able to unsubscribe. As they got my name and my phone number, the company tried to call me a few days after my subscription and I told them that I won't be able to do it. But they kept calling me so I blocked their number. And then here we are in July, an another phone number but this time in New York City (I'm French tho). They were looking for me but I didn't tell them who I was. I just blocked their number. But it's strange because the first company was in Dallas and this one is from NYC... I mean, why do they have my number and how do they know my name ?