I agree that this is a Kirby Spam call. We have the same problem. Many calls, no messages. We gave out our phone number as part of a kirby "promotion" and now the calls keep coming. Have never answered them. No message left.

Carpet Cleaning and Kirby vacuum promotion company, we are trying to opt out of many missed phone calls specifically on weekends

I've started getting missed cals from this number, no msg left and when I call back a pissed off bogan woman answers.

I have been getting missed calls from this number since last Wednesday - they never leave a message - do you know who it is?!