Robtex

Up: 31.135.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 31.135.72.0/22
Down right: 31.135.76.0/22

IP	Type	Hostname
31.135.72.20	PTR	31.135.72.20
31.135.72.67	PTR	31.135.72.67
31.135.72.71	PTR	31.135.72.71
31.135.72.131	PTR	31.135.72.131
31.135.72.131	A	ask-my.ru
31.135.73.2	A+PTR	mail.fikser.ru
31.135.73.2	A	mx20.fikser.ru
31.135.73.4	PTR	31.135.73.4
31.135.73.4	A	pizza-myt.ru
31.135.73.4	A	sushisale.msk.ru
31.135.73.22	A	mx.syward.ru
31.135.73.26	A	coomb.ru
31.135.74.2	A+PTR	mail.mmzavod.ru
31.135.76.7	PTR	31.135.76.7
31.135.76.16	PTR	31.135.76.16
31.135.76.20	PTR	31.135.76.20
31.135.76.54	PTR	31.135.76.54
31.135.76.61	PTR	31.135.76.61
31.135.77.113	PTR	31.135.77.113
31.135.77.119	PTR	31.135.77.119
31.135.77.185	PTR	31.135.77.185