I dialed the number and it says "you have reached the DO NOT call request line." I have not been able to block the number but what I know for sure is that they won't stop calling my cellular. they don't call my home phone

I keep getting the same call, I tried calling the number back and it gives the name of the company so fast that I cannot recognize it, all I get at the end is marketing

Try www.411.com   "Reverse Phone" Search by entering (647) 430-5646

Its used by Hyundai dealers to call you with vehicle service reminders.  No upselling just a reminder in my case. (w/ Kingscross Hyundai)

I believe it might be related to Rexdale Hyundai, possibly its Call Center.  I cannot confirm if it is or isn't however.