If you have Verizon you can sign into My Verizon and block up to 5 numbers for 90 days - if you want to continue the block youi just re-up. I only just learned this because I got the same call about an hour ago and no one except my friends & close family has my cell number either - or so I thought..
They're really keeping busy today. I just got a call from them, too. I don't know anyone in Seattle, so I assumed it was a wrong number and silenced it. Looks like they didn't leave voicemail.
I get a call from this number once a week or so. When I call back from a blocked line, I get one ring and then a fast busy signal. No voice mail is ever left for me, so I don't know who's calling.
just got a call from this number. same as everyone is saying, it rings once and then goes to a busy signal. but what i thought was weird is that when the call came through it said " three way call from 206-200-5990. I have no idea how they got a hoke of my cell #.