Who called from 6474273908

Possible telemarketer or scam.

When picked up, it rang on the other end, followed by dead silence.

Unknown at this time. I'll put money on duct cleaning.

what do you want..

This number belongs to Rogers Communications. 3 guesses as to what they are trying to sell you.
If you have no previous business dealings with them and your phone is listed on the DNC list, report them and they could be subject to $$$$$ in fines.