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..
just got a call on my cell at 11:24pm on 11/28/2011. I did not answer and called the number back using a landline phone and got a ring then busy signal. scam call i guess..
Just got a missed call on my personal cell phone from 206-200-5990. Only a fast busy signal when I tried to call back. NO TELEMARKETERS should be calling my cell. Would like to know how to prevent this.