ftp://ftp.nrc.ca/pub/systems/linux/debian.org/debian-jp/dists/  direct

[DIR]woody-jp/  direct  5 twin directories
6 B  2008-02-25unstable-jp  5 mirrors
8 B  2008-02-25testing-jp  5 mirrors
8 B  2008-02-25stable-jp  5 mirrors
[DIR]sid-jp/  direct  5 twin directories
[DIR]sarge-jp/  direct  5 twin directories
26 B  2008-02-25proposed-updates-jp  4 mirrors
[DIR]potato-towns/  direct  4 twin directories
[DIR]potato-pc98/  direct  4 twin directories
[DIR]potato-jp-proposed-updates/  direct  5 twin directories
[DIR]potato-jp/  direct  5 twin directories
9 B  2008-02-25oldstable-jp  5 mirrors
488 B  2002-07-28README  526+ mirrors