Robtex

Up: 178.252.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 178.252.240.0/23
Down right: 178.252.242.0/23

IP	Type	Hostname
178.252.240.14	PTR	240-014.rosintel.net
178.252.240.61	PTR	240-061.rosintel.net
178.252.240.85	PTR	240-085.rosintel.net
178.252.240.220	PTR	240-220.rosintel.net
178.252.241.65	PTR	241-065.rosintel.net
178.252.242.38	PTR	242-038.rosintel.net