Who called from 4164220548

Who is this 416-422-0548? Thanks,

1st call Feb. 12, 2008 at 6:53 pm, did not answer call, they did not leave a message, with phone number 416 422 0565
2nd call Feb. 14, 2008 at 5:41 pm. did not answer the call, they did not leave a message, with number 416 422 4248
3rd call Feb. 15, 2008 at 5:49 pm. did not answer the call, they did not leave a message, with phone number 416 422 0548

2 rings and no one there

The origin is Canada so it cannot be blocked through Comcast.