Does IBKR Australia support ASX IPO's?

No, this is not supported via IBKR Australia.

However, you can still participate in IPOs and request the IPO shares to be received at the registry in issuer sponsored form. Once received at the registry, you can raise a position transfer ticket via the client portal message center and request to transfer these securities to your IBKR account by providing the stock ticker / account holder’s name / mailing address and the number of shares, and we will assist further.

Powered by IBot
Why did I receive a notice of an unconfirmed position transfer?
How do I transfer a mutual fund position from a Mutual Fund Company to IBKR?
How do I transfer assets as a result of divorce?
I am unable find a ticker to initiate a position transfer.