Who called from 8646511002

Same as the rest. Rang and stop. Telemarketers.

Got call at9pm on a Friday. Didn't have phone on me so missed call. No message but it's a SC #.

Called them back... They offered me a $100 gift card to walmart but then needed shipping money? ...most likely a scam. Didnt get the company name.

Same thing. 1/2 ring until it showed on Caller ID. No message.

Junk, just waste of time.  Got the 'ringback' system, you answer then they pick up.  If folks don't say "hello" after I first announce greeting, they are on 3 seconds to hang up.