new hosts appearing between 2012-05-31_0800 and 2012-06-01_0800:
www.bitsnoop.com                has IPv4 31.7.59.14 has IPv6 2a02:29b8:1925::2 (ok)
www.bobagento.com               has IPv4 141.101.124.71, 141.101.126.70 has IPv6 2400:cb00:2048:1::8d65:7e46 (ok), 2400:cb00:2048:1::8d65:7c47 (ok)
www.designmadeingermany.de      has IPv4 83.169.25.9 has IPv6 2a01:488:42:1000:53a9:1909:68:7b3b (ok)
www.fbi.gov                     has IPv4 209.84.4.105, 4.23.63.87, 8.12.217.126 has IPv6 2001:4801:7901:0:6969:2b9e:0:1 (ok)
www.geneanet.org                has IPv4 212.43.237.90, 212.43.237.89 has IPv6 2001:a70:0:2::12 (ok), 2001:a70:0:2::13 (ok)
www.iij4u.or.jp                 has IPv4 210.148.162.25 has IPv6 2001:240:bb81:8500::3:101 (ok)
www.joomlaclube.com.br          has IPv4 189.38.91.70 has IPv6 2804:10:2003::91:70 (ok)
www.mozilla.org                 has IPv4 63.245.217.105 has IPv6 2620:101:8008:5::2:1 (ok)
www.ncsu.edu                    has IPv4 152.1.226.10 has IPv6 2605:100:10::10 (ok)
www.podnapisi.net               has IPv4 91.185.205.30, 91.185.207.128 has IPv6 2a02:840:1:2:111::1 (ok)
www.telenor.no                  has IPv4 153.110.239.148 has IPv6 2a02:9c8:0:3002::1 (ok)
www.upic.me                     has IPv4 174.127.72.3 has IPv6 2404:8800:804::1 (ok)
www.usgs.gov                    has IPv4 199.93.56.125, 8.26.198.253, 8.26.197.254 has IPv6 2001:49c8:4000:120c::2217 (ok)
www.utah.edu                    has IPv4 155.97.137.55 has IPv6 2001:1948:414:6::2 (ok)

hosts disappearing between 2012-05-31_0800 and 2012-06-01_0800:
mozilla.org                     had IPv4 63.245.215.20 had IPv6 2620:101:8008:5::2:1 
socialsecurity.gov              had IPv4 199.173.225.5, 137.200.4.16 had IPv6 2001:1930:c00::19 
www.af.mil                      had IPv4 72.246.53.57, 72.246.53.90 had IPv6 2600:809:600::3f50:411 , 2600:809:600::3f50:442 (failed)
www.akamai.com                  had IPv4 72.246.53.64, 72.246.53.8 had IPv6 2600:809:600::3f50:408 , 2600:809:600::3f50:44a 
www.aolcdn.com                  had IPv4 173.223.232.160, 173.223.232.161 had IPv6 2600:809:600::3f50:412 , 2600:809:600::3f50:421 
www.berkeley.edu                had IPv4 169.229.216.200 had IPv6 2607:f140:0:81::f 
www.blogcdn.com                 had IPv4 173.223.232.48, 173.223.232.98 had IPv6 2600:809:600::3f50:40a (failed), 2600:809:600::3f50:412 
www.cht.com.tw                  had IPv4 202.39.225.136 had IPv6 2001:b000:180:3::136 
www.dot.gov                     had IPv4 72.246.53.106, 72.246.53.91 had IPv6 2600:809:600::3f50:44a , 2600:809:600::3f50:428 (failed)
www.hinet.net                   had IPv4 202.39.224.7 had IPv6 2001:b000:180:3::7 
www.huawei.com                  had IPv4 72.246.53.57, 72.246.53.51 had IPv6 2600:809:600::3f50:43a (failed), 2600:809:600::3f50:428 
www.nasa.gov                    had IPv4 173.223.232.138, 173.223.232.136 had IPv6 2600:809:600::3f50:41b , 2600:809:600::3f50:411 
www.navy.mil                    had IPv4 72.246.53.9, 72.246.53.90 had IPv6 2600:809:600::3f50:443 , 2600:809:600::3f50:412 
www.novell.com                  had IPv4 130.57.5.118 had IPv6 2600:806:310::102 
www.opensuse.org                had IPv4 130.57.4.24 had IPv6 2600:806:310::100 
www.porsche.com                 had IPv4 72.246.53.105, 72.246.53.11 had IPv6 2600:809:600::3f50:41b , 2600:809:600::3f50:440 
www.state.gov                   had IPv4 72.246.53.56, 72.246.53.104 had IPv6 2600:809:600::3f50:44a , 2600:809:600::3f50:40a 
www.tsa.gov                     had IPv4 173.223.232.154, 173.223.232.121 had IPv6 2600:809:600::3f50:419 , 2600:809:600::3f50:422 
www.upenn.edu                   had IPv4 173.223.232.112, 173.223.232.128 had IPv6 2600:809:600::3f50:431 , 2600:809:600::3f50:42a (failed)
www.uscis.gov                   had IPv4 72.246.53.49, 72.246.53.106 had IPv6 2600:809:600::3f50:430 , 2600:809:600::3f50:449 
www.usembassy.gov               had IPv4 72.246.53.56, 72.246.53.104 had IPv6 2600:809:600::3f50:40a , 2600:809:600::3f50:44a