ftp://ftp.calyx.nl/pub/OpenBSD/4.0/packages/  direct

[DIR]vax/  direct  11950+ twin directories
[DIR]sparc64/  direct  22012+ twin directories
[DIR]sparc/  direct  26652+ twin directories
[DIR]powerpc/  direct  21928+ twin directories
[DIR]mips64/  direct  1848+ twin directories
[DIR]m88k/  direct  1590+ twin directories
[DIR]m68k/  direct  15428+ twin directories
69 B  2005-09-23index.txt  90 mirrors
[DIR]i386/  direct  65535+ twin directories
[DIR]hppa/  direct  9836+ twin directories
[DIR]arm/  direct  26137+ twin directories
[DIR]amd64/  direct  34487+ twin directories
[DIR]alpha/  direct  31066+ twin directories