Did a quick google search for the number 416-845-0000 and found:
Peiman Beigbabai
Homelife Bayview Realty Inc Brokerage
505 Hwy 7 East Suite 201
Thornhill, ON L3T 7T1

Then I searched this site for this Realtor and found:
http://800notes.com/Phone.aspx/1-416-434-7652
Here is another example of a robocalling Toronto area Realtor:
http://800notes.com/Phone.aspx/1-647-893-4461

Judging by the number of calls we get by Realtors to see if we would like to sell, I don't buy Peiman's complaint: "Someone is using my number to display on peoples phones when making calls"