(817) 372 in Fort Worth, TX

suspicious text from unknown number

One text telling me his name is Keith Vonda and that he is trying to call me. I had received three confusing calls, also: Mon., 12-7, I answered, and no one said anything; 2nd call, I said "Hello", and he said "Hello" and said nothing else so I hung up; at 7:03 p.m., I answered and he (black man) said "May I speak to Bonda(?) or Vonda(?). Told him he had the wrong # and hung up. I called this # last night, blocking my #, and got a recorder that identified as Keith Davis (white man), saying the "box is full", so I hung up.