ftp://debian.lcs.mit.edu/debian/dists/  direct

450 B  2008-07-31README  510+ mirrors
[DIR]lenny/  direct  390+ twin directories
5 B  2007-04-07oldstable  430+ mirrors
22 B  2007-05-14oldstable-proposed-updates  210+ mirrors
5 B  2008-04-12Debian3.1r8  170 mirrors
[DIR]etch/  direct  520+ twin directories
[DIR]sarge/  direct  750+ twin directories
[DIR]sarge-proposed-updates/  direct  250+ twin directories
[DIR]sid/  direct  540+ twin directories
4 B  2007-04-07stable  370+ mirrors
4 B  2008-07-31Debian4.0r4a  118 mirrors
[DIR]etch-m68k/  direct  167 twin directories
[DIR]etch-proposed-updates/  direct  230+ twin directories
[DIR]experimental/  direct  1000+ twin directories
[DIR]lenny-proposed-updates/  direct  220+ twin directories
21 B  2007-04-07proposed-updates  177 mirrors
21 B  2007-04-07stable-proposed-updates  210+ mirrors
5 B  2007-04-07testing  380+ mirrors
22 B  2007-04-07testing-proposed-updates  187 mirrors
3 B  2005-09-07unstable  290+ mirrors
12 B  2008-08-04rc-buggy  110 mirrors