I have no idea who this caller is; calls on cell.

Same here

Got a call from 1 (647) 557-5013Ontario, Canada i answered by mistake and said hello multiple times and nobody replied (number is now blocked on my phone)

If you have an android phone its very simple to block the number. From the call log select the number then click on menu and you should see "Add to blacklist" select that and all calls and text will be blocked from that number

Got a call from (647) 557-5013. it is from Toronto.I made a mistake of answering the call i received my phone bill and i was charged long distance as if i made the call.My phone is with my cable service and eastlink won't do any thing about the call.They said they could block my long distance but then i can't make any long distance calls if i had to.I blocked the number.I got the call on april 24thJoan

Just received a call from this number.   How can i bloced this on a house line with Bell

Yup been getting the same call from this number.  I don't answer, and now I am going to block it.