Who called from 5127176185

For the brief 2 seconds I was on the phone with this number, I believe it's a get-rich-quick scheme.

Wants you to listen to his 12 minute call.  No way to stop this guy from calling, he uses lots of different numbers.  Very annoying and creepy!

Cannot get this guy to stop calling. Even blocking your number on the Do-Not-Call list doesn't help!!

Perhaps because the do not call list isn't a call blocker?

Call Blocker
You need to buy a standalone call blocker, call blocking phone, use your carrier’s call blocker if they offer one, or download a free call blocking app for smart phones.  For conventional cell phones, assign the number a letter like “z” and make no ring.  You may also need to have your carrier increase the ring time to avoid having them leave a message on your voice mail.

This number calls and calls but nvr leaves a VM. Very annoyed. Tht it might be someone, old friend, etc. But finally blocked this number on my iPhone 6 that does have number blocking capability.