new hosts appearing between 2011-10-19_0800 and 2011-10-20_0800:
www.centurylink.com             has IPv4 159.78.72.30 has IPv6 2001:428:b21:1::20 (ok)
www.edu.cn                      has IPv4 202.205.109.205, 202.112.0.36, 211.151.94.138 has IPv6 2001:da8:20d:22::2 (ok)
www.grammarly.com               has IPv4 184.73.19.159 has IPv6 2600:3c01::f03c:91ff:fe93:9c7c (ok)
www.hinet.net                   has IPv4 202.39.224.7 has IPv6 2001:b000:180:3::7 (ok)
www.tech4on.com                 has IPv4 81.169.145.156 has IPv6 2a01:238:20a:202:1090::144 (ok)

hosts disappearing between 2011-10-19_0800 and 2011-10-20_0800:
www.berlinonline.de             had IPv4 46.4.70.192 had IPv6 2a01:4f8:141:21e1::2 
www.itu.int                     had IPv4 156.106.202.5 had IPv6 2001:918:fff6:214::12