Yes, I did receive a call here in Toronto from 503 277 3521 on my cell  and that call  tried to access my internet.. 10.55 am EST.

I called back from my landline and it did not go to a proper phone.  Certainly I got a funny sound.. kind of that number doesn't exist... Weird!

my too i have receive the same number phone in my cell ( no phone ring  just vibration )
i live in Montreal QC

the number ( 1-503-277-3521 ) is the robot caller

i receive this call : 12:22 PM est

I got the call at 9:07am. Answered it,  automated message about winning a cruise. I hung up. I'm in Vancouver, BC area.

Got a call from this number at 5.30 in the morning in prince albert Sk

Same here, just ignored it.