Robtex

Up: 90.150.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 90.150.240.0/21
Down right: 90.150.248.0/21

IP	Type	Hostname
90.150.240.115	PTR	115.240.access.ttknet.ru
90.150.242.33	PTR	33.242.access.ttknet.ru
90.150.242.66	PTR	66.242.access.ttknet.ru
90.150.242.226	PTR	226.242.access.ttknet.ru
90.150.244.129	PTR	129.244.access.ttknet.ru
90.150.245.21	PTR	21.245.access.ttknet.ru
90.150.245.128	PTR	128.245.access.ttknet.ru
90.150.248.121	PTR	121.248.access.ttknet.ru
90.150.248.227	PTR	227.248.access.ttknet.ru
90.150.250.53	A	grandsm.com
90.150.251.224	PTR	224.251.access.ttknet.ru
90.150.253.130	PTR	130.253.access.ttknet.ru
90.150.255.179	PTR	179.255.access.ttknet.ru