How about this site for a start:
http://www.okean.com/antispam/sinokorea.html -- J.D. Bronson
- Country IP block list Security Admin (NetSec)
- Re: Country IP block list Bill Landry
- Re: Country IP block list J.D. Bronson
- Re: Country IP block list ghe
- Re: Country IP block list Roderick A. Anderson
- Re: Country IP block list Daniel V. Reinhardt
- Re: Country IP block list Mikael Bak
- Re: Country IP block list Ralf Hildebrandt
- Re: Country IP block list postfix . org
- Re: Country IP block list Justin Piszcz
- Re: Country IP block list Benny Pedersen
