new hosts appearing between 2012-04-25_0800 and 2012-04-26_0800:
www.active24.cz                 has IPv4 81.95.96.6 has IPv6 2a02:4a8:ac24:100::96:6 (ok)
www.auone-net.jp                has IPv4 61.200.220.185 has IPv6 2001:268:fa01:b03::8 (ok), 2001:268:fa01:b04::8 (ok)
www.boards.ie                   has IPv4 89.234.66.107, 89.234.66.108 has IPv6 2a01:258:f000:3::107 (ok), 2a01:258:f000:3::108 (ok)
www.cht.com.tw                  has IPv4 202.39.225.136 has IPv6 2001:b000:180:3::136 (ok)
www.ehu.es                      has IPv4 158.227.0.65 has IPv6 2001:720:1410::65 (ok)
www.gov.hk                      has IPv4 202.128.243.212 has IPv6 2406:0:6a:1::84 (ok)
www.hinet.net                   has IPv4 202.39.224.7 has IPv6 2001:b000:180:3::7 (ok)
www.iij4u.or.jp                 has IPv4 210.148.162.25 has IPv6 2001:240:bb81:8500::3:101 (ok)
www.kennstdueinen.de            has IPv4 80.67.27.48 has IPv6 2a00:1158:0:402:bd8a::1 (ok)
www.lima-city.de                has IPv4 212.83.45.135 has IPv6 2a00:f48:2000:affe::49 (ok)
www.mein-fun.com                has IPv4 141.0.17.3 has IPv6 2a00:1158:0:406:774e::1 (ok)
www.modaco.com                  has IPv4 141.101.126.65, 141.101.125.65 has IPv6 2400:cb00:2048:1::8d65:7d41 (ok), 2400:cb00:2048:1::8d65:7e41 (ok)
www.socialsecurity.gov          has IPv4 199.173.225.5, 137.200.4.16 has IPv6 2001:1930:c00::19 (ok)
www.ssa.gov                     has IPv4 199.173.225.5, 137.200.4.16 has IPv6 2001:1930:c00::19 (ok)
www.up.pt                       has IPv4 193.137.55.13 has IPv6 2001:690:2200:a10::13 (ok)
www.upc.edu                     has IPv4 147.83.2.135 has IPv6 2001:40b0:7500:1::21 (ok)
www.upic.me                     has IPv4 174.127.72.3 has IPv6 2404:8800:804::1 (ok)
www.uv.es                       has IPv4 147.156.1.4 has IPv6 2001:720:1014:1::4 (ok)
www.uyirvani.com                has IPv4 85.114.137.139 has IPv6 2001:4ba0:fff7:6c::1 (ok)

hosts disappearing between 2012-04-25_0800 and 2012-04-26_0800:
socialsecurity.gov              had IPv4 199.173.225.5, 137.200.4.16 had IPv6 2001:1930:c00::19 
ssa.gov                         had IPv4 199.173.225.5, 137.200.4.16 had IPv6 2001:1930:c00::19 
www.ansi.co.jp                  had IPv4 182.48.46.93 had IPv6 2002:b630:2e5d::1 
www.ba.no                       had IPv4 87.238.54.252, 87.238.54.253 had IPv6 2a02:c0:1011::54:253 , 2a02:c0:1011::54:252 
www.plurk.com                   had IPv4 74.120.121.34, 74.120.121.80, 74.120.121.83 had IPv6 2607:f128:47::1:1 
www.torrentz.eu                 had IPv4 212.7.193.41, 68.71.55.20, 85.195.102.28, 46.19.137.188 had IPv6 2a02:29b8:1602::2 , 2a01:7a0:2:49:225:90ff:fe52:bb28 
www.tsinghua.edu.cn             had IPv4 121.52.160.5 had IPv6 2402:f000:1:404:166:111:4:100