I also keep getting phone calls from this number. It's always between 2:00 and 5:00 which is when I'm in class. It's really annoying as it interupts me during class. I'm sure it's some form of calling spam but if anyone knows how to get them to stop calling I would greately appreciate knowing how to get them to stop.
I got a call from 210-280-8487 as well. They called yesterday at around 12 30 and the other one today at 2pm. They didn't leave a message either.I'm also in Canada.
I get a call from this number approx 4 times a week - I usually miss it as I'm at work, but I've answered twice including just now....no answer and they hang up after a few seconds!