new hosts appearing between 2012-02-19_0800 and 2012-02-20_0800:
www.berlin.de                   has IPv4 212.45.111.17 has IPv6 2a00:cd0:1002:1::17 (ok)
www.streamtheworld.com          has IPv4 208.80.55.200 has IPv6 2002:d050:37c8::1 (ok)
www.tataindicombroadband.in     has IPv4 59.163.6.33 has IPv6 2403:0:0:24::17 (ok)
www.ui.ac.id                    has IPv4 152.118.24.142 has IPv6 2403:da00:1:3::8e (ok)

hosts disappearing between 2012-02-19_0800 and 2012-02-20_0800:
tataindicombroadband.in         had IPv4 59.163.6.33 had IPv6 2403:0:0:24::17 
www.campus-party.com.br         had IPv4 173.203.206.139, 173.203.217.175 had IPv6 2001:470:1f06:e87::2 
www.opencongress.org            had IPv4 74.86.203.132 had IPv6 2607:f0d0:1003:81::2