new hosts appearing between 2012-01-31_0800 and 2012-02-01_0800:
m-cocolog.jp                    has IPv4 202.248.175.212 has IPv6 2001:258:8602:351:202:248:175:185 (ok)
www.big.or.jp                   has IPv4 183.181.7.1 has IPv6 2001:2e8:621:0:2:1:0:1 (ok)
www.ego4u.com                   has IPv4 46.252.31.47 has IPv6 2a00:1158:0:406:1509::1 (ok)
www.iij4u.or.jp                 has IPv4 210.148.162.25 has IPv6 2001:240:bb81:8500::3:101 (ok)
www.itu.int                     has IPv4 156.106.202.5 has IPv6 2a00:7580:60:2141::12 (ok)
www.loopia.se                   has IPv4 194.9.94.162 has IPv6 2a02:250::6 (ok)

hosts disappearing between 2012-01-31_0800 and 2012-02-01_0800:
www.encyclopediadramatica.ch    had IPv4 141.101.126.183, 141.101.125.183 had IPv6 2400:cb00:2048:1::8d65:7db7 , 2400:cb00:2048:1::8d65:7eb7 
www.gnula.tv                    had IPv4 91.192.111.196 had IPv6 2a00:1d70:c01c::111:196 
www.gov.hk                      had IPv4 202.128.243.212 had IPv6 2406:0:6a:8001::212 
www.gt-worldwide.com            had IPv4 46.252.31.18 had IPv6 2a00:1158:0:406:a992::1 
www.liriklaguindonesia.net      had IPv4 199.27.135.42, 173.245.61.118 had IPv6 2400:cb00:2048:1::adf5:3d76 , 2400:cb00:2048:1::c71b:872a 
www.sitesketch101.com           had IPv4 199.27.135.40, 173.245.61.114 had IPv6 2400:cb00:2048:1::c71b:8728 , 2400:cb00:2048:1::adf5:3d72 
www.ui.ac.id                    had IPv4 152.118.24.142 had IPv6 2403:da00:1:3::8e 
www.xl.co.id                    had IPv4 202.152.224.82 had IPv6 2400:9800:0:220::1