A woman with an oriental sounding accent calls from 970-236-9051 frequently.  She always asks for one of our IT employees.
She will not leave a message and no one is available to speak to her.

From the notes above this is a telemarketing scheme.

Keep getting calls I ignore but would call right back and when I answer it drops. So annoying!

I'm on the Do Not Call List. This number has called me three times today. 12:30, again at 2, again at 5. There's nobody on the other end when I say hello. SO OBNOXIOUS. Blocking it from my iPhone. DONE.

Thanks for All the good info.
I have a free app on my smart phone.
I'll block it.  just an. FYI it's Mr. Number and it has woked great for me.  Again THANKS.
------in my case, I didn't answer, then no message.-----

I havent given my number to anybody for over 6 months I dont register for things online that give my number. I finally answered this call after the fourth day in a row. The automated lady says I won a drawing for a credit of $2500 for an all inclusive 7day trip to cancun.

i get a call 4 or 5 times a week. and no one answers. if i hit 0 to unsubscribe it hangs up...... ANNOYING

Register your # of with donotcall.gov.  If they continue to call (as they have me every few days) with solicitations, file a complaint each & every time, at complaints.donotcall.gov.  They can face civil penalties for every call made in violation of the registry, so file, file file!

Woke my Baby up just to check the message that was a hangup.

Same thing happened to me

This number has been calling my cell phone about every 2 day for a few wks. I havent answered-but they have never left a message on my voicemail&i'm sure a personal or important business call (anyone other than telemarketer or automated line) would've left a message by now. very annoying.

Keep calling, yet never leave a message... Very annoying.

Saying that I subscribed and "won" a voucher for a Cancun vacation ... I pressed #3 to unsubscribe. We'll see if it works. Hate these things :/

I keep getting automated messages from this number thanking me for taking a survey. Which I won't. I hang up. I have a 970 number but haven't lived in Colorado for four years. Leave me alone.

They have been calling my cell every day, for a few days.  Never leave a message.  I can't remember if I spoke with them once to find out they are a telemarketer.  Frustrating if it's a business and they don't have courtesy to leave a brief message.