Who called from 2140000000

I've received a dozen calls from this number in the last 24 hours.  I don't answer calls from numbers I don't recognize.  Sometimes the phone only rings once, other times four times before the machine picks up.  No messages are left.

In the last three months, I've received a lot (excess of hundred) of similiar calls from different numbers
, but again, I don't pick up and there are never any messages left.  Very annoying.

Call came from a female, and ask for a Renee (wrong number). Then she says, "I do"? And said I'm sory.

Just got a call from 214-000-0000...did not leave a message...not sure what it is.....could be a collection agency of some type.

This annoying calls started a couple days ago, call every morning, never leave a message, and I never pick up because its obviously a spam call.  Very annoying!

Caller ID:  Name Unavailable
Unsolicited calls even though I am on Do Not Call Register