Australia doesn’t. We’re all .edu.au
Edit: here is the list of who uses it. Stands for academia if it wasn’t self evident to anyone else either.
2nd edit: having trouble with escaping characters in the link so it’s defaulting to the ac page when it should be https://en.wikipedia.org/wiki/.ac_(second-level_domain)
Just checked all 43 unis in this list and only Monash and carangie melon, which is an international uni, break the trend.