Who called from 2149321400

I have had several calls from this number and I awould like to know who is calling me.No message is left and I know of no one in this area

I have got two calls from this number. I didn't answer.

I had a message on my answering machine from this number the message was only one word and that word was DIE   needless to say it was a little upsetting I don't know anyone at this number as it has been reported as a telemarketer or what kind of telemarketer leaves that kind of message something needs to be done about whoever is using this phone number