Who called from 5014173000

Called my cell and left no voicemail.  I don't answer calls from numbers I don't recognize so I put the number on my reject call list.

Appears to be calling AT&T Cell phones.  Selling home security systems. The number is a fake call back number to make you think it is local.  Calling it gets you a disconnected.  After getting the third call from them (second on my wife's phone I gave the call center guy from India an ear full.

Received a call on my company Verizon cell phone from 501-417-3000.  Gave me two options.  One to talk to someone about a security system and the other to added to a do not call list.  Decided to give the person an ear full and selected option 1.  Lady answered and as I started to give them hell she hung up on me.  The call back number is invalid.  How convenient?

Invalid number when I called it back

Called my husband number then a minute late called mine.  When you call back disconnected Verizon number. Very weird.