Robtex

Up: 87.74.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 87.74.236.0/23
Down right: 87.74.238.0/23

IP	Type	Hostname
87.74.236.33	A	host-87-74-236-33.dslgb.com
87.74.237.76	A+PTR	host-87-74-237-76.dslgb.com
87.74.238.5	A	host-87-74-238-5.dslgb.com
87.74.238.62	A	host-87-74-238-62.dslgb.com
87.74.238.242	A	host-87-74-238-242.dslgb.com
87.74.239.255	A+PTR	host-87-74-239-255.dslgb.com