Reverse lookups on local IPs

[Jon Booth]

A while ago, about 2 years I think reverse lookups on local LAN IPs were
working. ie nslookup 192.168.1.1 returned something (I can't exactly
remember what though)

Does anyone remember if it was a global setup or just my local (Telstra
Australia) ISP's DNS server.

It was very handy as it meant you didn't have to do the task yourself.

Am I just talking trash or was it really set up by whoever controls those
IP's (ICANN or whoever). Why don't the set it up again?

Cheers
Jon