Just received a call from this number (240-318-1559) and let it go to V/M because I didn't recognize it and the number isn't in any of my contact lists. Called back and got a recorded message stating "Welcome to our customer communications platform" with automated options. Press 1 for customer service and Press 2 to have your number added to our Do Not Call List.
First call back I selected #1 and after 10 seconds of music got a recorded message stating to leave your message and someone will get back with you. I did and my message said "This is God and you're in trouble. But, if you send a compensation donation of $100.00 to my people, I'll withdraw the orders for your demise". Called back a 2nd time and pressed to #2 to have my number added to the Do Not Call list and then added the number to the Federal DNC list.
I got a call from this number 240 - 318 - 1559 about 10 minutes ago, could not pick up the call, and the message they left was just some kind of small airplane engine sound lasted for 10 secs. Their location probably somewhere near Andrew Airport. MD.
On the other hand, as reading other comments here, I've been also received phone calls from this home security company stated something like "The FBI reported that...." from others numbers. They were: 202-888-6297 . 484-891-5567 . 720-452-6404