Who called from 7341892472

I've been getting calls from this number since the beginning of summer, I've never seen a number start with a 1 so I've never answered it. Sounds like it may be a not trying to find good numbers to sell.

I've also been getting calls from this number at random hours since the beginning of summer. The calls are becoming more frequent but I've never been around to answer it. No voicemails. Really annoying!

I also have been getting calls from this number. The caller ID on my phone says Ann Arbor MI.  When I answer a computer says goodbye and hangs up!

Calls my home phone then within 5 minutes calls my cell phone??  Been going on all summer.  I just blocked this number from my cell and home, should have done it sooner!