Called my cell phone at 5:28 pm on 5/30/14 but had my ringer off, so I missed call. Caller didn't leave a message. The caller id came up as "unavailable" and I checked the internet for the number, found this site, then added the number to my blocked calls list.
Just got this missed call today. Noone had this new # until yesterday when we shopped at Dick's Sporting Goods!!! Seems they may be selling customers info.