Robtex

Up: 81.26.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.26.104.0/22
Down right: 81.26.108.0/22

IP	Type	Hostname
81.26.105.1	PTR	fe0-0.gw1.discpro.org
81.26.105.2	PTR	rdns1.discpro.org
81.26.105.3	PTR	rdns2.discpro.org
81.26.105.24	PTR	caro.discpro.org
81.26.107.2	PTR	host1.kbnet.net
81.26.107.3	A+PTR	darkstar.kbnet.net
81.26.107.32	PTR	no-dns.as5587.net
81.26.108.0	PTR	no-dns.as5587.net
81.26.109.97	PTR	no-dns.as5587.net
81.26.110.18	PTR	marge.pins.co.uk