new hosts appearing between 2012-02-25_0800 and 2012-02-26_0800:
sac.uol.com.br                  has IPv4 186.234.4.10 has IPv6 2804:49c:319:430::320 (ok)
www.bme.hu                      has IPv4 152.66.115.224 has IPv6 2001:738:2001:2001::dec0 (ok)
www.cpan.org                    has IPv4 199.15.176.140, 207.171.7.177 has IPv6 2620:101:d000:8::140:1 (ok), 2a01:608:2:4::2 (ok)

hosts disappearing between 2012-02-25_0800 and 2012-02-26_0800:
www.iij4u.or.jp                 had IPv4 210.148.162.25 had IPv6 2001:240:bb81:8500::3:101 
www.mmashareforum.com           had IPv4 109.239.61.154 had IPv6 2a00:1158:0:406:b81f::1 
www.radardedescontos.com.br     had IPv4 200.147.99.165 had IPv6 2804:49c:319:430::147 
www.worldstream.nl              had IPv4 93.190.136.5 had IPv6 2a00:7c80::2