Seems this asked a few times, Though I didn’t get very far with the call centre.
I had an Optus number that I stopped using for a while when I got a work mobile. I’m now looking to seperate out my work life from my personal life a bit, and I’m looking at getting the old number back up and running. It’s been disconnected for just over a year and it still dials straight to a disconnected message. Is there a way to get this number back?
My advice would be to forget about it. Over 6 months and the number has been deactivated. People do speak to Optus to try and get their old numbers back but, as far as I can tell from the posts on this forum, with very little success.