I just called the Do Not Call complaint line  at 1-+1 888-382-1222 about this number.  A bit time consuming as it is all automated. But hopefully we will not hear from this 403 number again!

person called but didn't  speak but I could hear some office type noise in the background

Called back number. Voice message stating Canada Christian College looking for donations.

this number called and when I answered there was no one on the other end ... after a few second they hanged up - there was no noise or anything at the other end, I could not hear anything.

Total scam. They called us and asked for my husband by name. When I asked who was calling, he said, "A charity." When I asked which one, he said "Uh, the National Don't Do Drugs Foundation?" Since it sounded too ridiculous to be true, I passed the phone to my husband thinking it was a friend playing a joke. They asked my husband for a donation of either $100 or $200; I convinced him to hang up.

Insistant & annoying caller. Recv'd 3 calls this evening from same number. They never give up!!!!!!You would think they would get the hint as I have this number on call block!!!!!!!