ftp://core.ring.gr.jp/pub/NetBSD/packages/current-packages/NetBSD/x86_64/  direct

[DIR]4.99.x/  direct  16 twin directories
[DIR]4.0_2008Q3/  direct  83 twin directories
[DIR]4.0_2008Q2/  direct  149 twin directories
10 B  2008-10-164.0  306+ mirrors
[DIR]3.1_2008Q3/  direct  57 twin directories
[DIR]3.1_2008Q2/  direct  50 twin directories
10 B  2008-10-163.1  117 mirrors
10 B  2008-01-122.1  35 mirrors