Asked for ken but i don't know who?

this number called my Vancouver based cell phone every minute for 15 minutes at 3am until 315am. then it started again for a few calls at 630am. when I answered it sounded like some one on a long distance phone call, speaking an unknown language. I told them to lose my number, followed by a rude goodbye

(604) 629-2009 is a number I receive when my brother uses his calling card from Ontario to call me.

Calls from this number about fifteen times a day for the last four days.  Today, five calls from this number in ten minutes.

I have received eleven calls in the last two days from this number  no one answers and when I call back I get a dial tone.  Very annoying and I want to find out who is doing this. N6F9