nightmarejetfuel

I've resorted to adding numbers to the "Reject call" list on my phone but still keep getting calls for home security systems. Is it generally one company with multiple lines or are there that many companies that want to give me a free home security system?

Edit: They tend to have different area codes, but that doesn't seem like it would be a difficult hurdle to overcome.

Just a random mass robocaller looking for valid numbers? That's...diabolical actually. And dickish.