This is a pretty nasty beast. I got a call from this group yesterday on my cell, the ID stated 206 397 1523. Some home security jerk. Today I got one from 213 725 5376. After looking here, I realize its the same gang. When i called the 213 # from my office it rang and rang, no answer. I called back 30 seconds later and got a "fast busy." When I called 206 number I got the "if you want to be removed..." message people have posted about here previously. What this means is that this is a boiler-room call center with a very sophisticated call center system. If you call them, and you dont connect, they auto-add your stated caller id number and block you immediatly. They are spoofing thier caller id, and this is a shill number to keep the heat off.
Right now I'm hoping they do call me back so I can tell them I work for the FBI office in Cleveland.
Got a call from these people and I didn't answer on my cell phone but I checked the phone number after I ignored the call and my iPhone says it's a los Angeles Ca #. I hate when people call my cell who I don't know