new hosts appearing between 2011-10-14_0800 and 2011-10-15_0800:
toolserver.org                  has IPv4 91.198.174.214 has IPv6 2620:0:862:101::1:4 (ok)
www.drdobbs.com                 has IPv4 192.155.50.108 has IPv6 2001:428:1002:10:0:3:0:150 (ok)
www.iij4u.or.jp                 has IPv4 210.148.162.25 has IPv6 2001:240:bb81:8500::3:101 (ok)

hosts disappearing between 2011-10-14_0800 and 2011-10-15_0800:
www.ui.ac.id                    had IPv4 152.118.24.142 had IPv6 2403:da00:1:3::8e