apuc.. reponses on reverse DNS

[Rich <richtemp () newsguy com>]

When running a reverse-DNS lookup on a few IP addresses in Korea or Japan, 
I was getting either "apuc10", "apuc20", or "apuc21" reposes back. I'm not 
sure what these mean. If anyone had some detail or could point me in the 
right direction I'd most appreciate it.

Thanks in advance,
Rich