new hosts appearing between 2012-02-22_0800 and 2012-02-23_0800:
bol.uol.com.br                  has IPv4 200.221.8.134, 200.147.67.161 has IPv6 2804:49c:319:430::326 (ok)
www.anitube.co                  has IPv4 174.127.101.242 has IPv6 2607:f0d0:3001:a4::2 (ok)
www.big.or.jp                   has IPv4 183.181.7.1 has IPv6 2001:2e8:621:0:2:1:0:1 (ok)
www.dickmorris.com              has IPv4 199.27.134.121, 199.27.135.121 has IPv6 2400:cb00:2048:1::c71b:8679 (ok), 2400:cb00:2048:1::c71b:8779 (ok)
www.ehu.es                      has IPv4 158.227.0.65 has IPv6 2001:720:1410::65 (ok)
www.iij4u.or.jp                 has IPv4 210.148.162.25 has IPv6 2001:240:bb81:8500::3:101 (ok)
www.venmobulo.com               has IPv4 91.192.111.157 has IPv6 2a00:1d70:c01c::111:157 (ok)

hosts disappearing between 2012-02-22_0800 and 2012-02-23_0800:
www.bol.uol.com.br              had IPv4 200.221.138.61, 200.221.138.62, 200.221.138.63, 200.221.138.64, 200.221.138.65 had IPv6 2804:49c:319:430::322 
www.dafont.com                  had IPv4 87.98.168.164 had IPv6 2001:41d0:2:8753::1 
www.nn.iij4u.or.jp              had IPv4 210.138.74.172 had IPv6 2001:240:bb41:8014::166 
www.series21.com                had IPv4 195.78.229.151 had IPv6 2a00:1d70:c01c::229:151 
www.stanford.edu                had IPv4 171.67.215.200 had IPv6 2607:f6d0:0:925a::ab43:d7c8 
www.ui.ac.id                    had IPv4 152.118.24.142 had IPv6 2403:da00:1:3::8e