Who called from 5755271364

First call came in and hung up.  The call came in as a home security company offering $2500 in wireless home security just for allowing them to put a sign in my yard.  I blocked them, sounds to good to be true. Seemed fraudulent.

The first call came in to my boyfriends phone, and we missed it. Not even 5 minutes later my phone started ringing, and it was the same number. I checked his phone to be sure. I answered it, and they hung up..

Saw that this number called at 1427 hrs, and did not leave a message.

I received a call from this numberI did not answer because I did not recognize the number it left a 21 second voicemail off complete silence

I got the exact same call. Idk how they get these numbers if you're on the "do not call" list! Ugh...