Who called from 7208640700

I am getting calls from this number again and again, and on pickingup the phone no one answers.

1(720)864-0700....this is SPAM and leads to a VIRUS if you agree to press numbers for replies...

didn't answer this call and no message was left

I have been getting calls from 720-864-0700 number all day. I answer and no one is there. I just won't answer it anymore. Its even a local number for me. I don't know, but I am sick of getting calls like this!!

This number has been called to my phone several times today but if I don't recognized the number I don't answer...I think someone is trying to find out if I'm home, maybe???