new hosts appearing between 2011-06-16_1500 and 2011-06-16_2000:
www.indosat.com
www.itb.ac.id
www.loopia.se
www.luo.bo
www.monash.edu.au

hosts disappearing between 2011-06-16_1500 and 2011-06-16_2000:
www.cuni.cz