IPv4 address space is down to 7% on the exhaustion counter – see the right hand column on this blog.
I’m never sure when it clicks over because I’m not watching it all the time. I’d like to be there when it clicks down a number. It’s a bit like seeing the mileometer in your car click over a significant mileage – as my Peugeot did recently when it hit 240,000 :-).
I’m going to organise a party next year to coincide with the notional IPv4 exhaustion date. If you want to come get your name down here. I envisage this will be an international event.