new hosts appearing between 2012-03-20_0800 and 2012-03-21_0800:
www.atarde.com.br               has IPv4 200.147.35.224, 200.147.3.199 has IPv6 2804:49c:319:430::326 (ok)
www.boardingarea.com            has IPv4 107.21.219.95 has IPv6 2406:da00:ff00::6b15:db5f (ok)
www.cht.com.tw                  has IPv4 202.39.225.136 has IPv6 2001:b000:180:3::136 (ok)
www.hinet.net                   has IPv4 202.39.224.7 has IPv6 2001:b000:180:3::7 (ok)
www.itu.int                     has IPv4 156.106.202.5 has IPv6 2a00:7580:60:2141::12 (ok)
www.kinghost.com.br             has IPv4 189.38.88.17 has IPv6 2804:10:5::88:18 (ok)
www.kinghost.net                has IPv4 189.38.81.20 has IPv6 2804:10:5::81:20 (ok)
www.registro.br                 has IPv4 200.160.2.3 has IPv6 2001:12ff:0:2::3 (ok)
www.terra.com.br                has IPv4 200.154.56.80 has IPv6 2001:12c0:0:aaaa:200:154:56:80 (ok)
www.unesp.br                    has IPv4 200.145.6.90 has IPv6 2801:88:1000::90 (ok)
www.usp.br                      has IPv4 200.144.190.196 has IPv6 2001:12d0::190:196 (ok)

hosts disappearing between 2012-03-20_0800 and 2012-03-21_0800:
entretenimento.uol.com.br       had IPv4 200.221.8.140, 200.147.67.181 had IPv6 2804:49c:319:430::319 
www.allkpop.com                 had IPv4 67.228.171.85 had IPv6 2607:f0d0:1004:93:0:101:b4b0:85 
www.bpm.uol.com.br              had IPv4 200.147.3.143 had IPv6 2804:49c:319:430::190 
www.maketecheasier.com          had IPv4 173.245.60.102, 173.245.61.34 had IPv6 2400:cb00:2048:1::adf5:3c66 , 2400:cb00:2048:1::adf5:3d22 
www.sub-titles.net              had IPv4 91.185.205.30 had IPv6 2a02:840:1:2:111::1 
www.techtudo.com.br             had IPv4 186.192.82.155 had IPv6 2804:294:4000:8000::5