Who called from 2067019832

This is about the 8th time that I have ended up with unknown missed calls late at night over the last few months.  It normally just rings about 1/2 way through the first ring then stops.  Then repeats this about 5-10 times.  This last time on two of the five calls this number showed up.  When I called back it was just a busy signal.

Is there a way to make it stop?

That number called me several times when I was sleeping at four in the morning.  They had a funny accent and claimed they were calling from Cambodia.

i got a call from 206-701-9832 at 12 noon, stops, then calls 3 times more and stopped again, but when I called it, it was busy as hell.

I called my cell phone using Skype and this number came up.  I called my phone again, and I also got "unknown".

I just got rickrolled by that number