Robtex

Up: 81.0.240.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 81.0.242.0/24
Down right: 81.0.243.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.0.242.9	PTR	assigned-81-0-242-009.casablanca.cz
81.0.242.9	A	artfresco.cz
81.0.242.15	A	www.letouni.com
81.0.242.18	PTR	assigned-81-0-242-018.casablanca.cz
81.0.242.18	A	alberta.cz
81.0.242.19	PTR	assigned-81-0-242-019.casablanca.cz
81.0.242.19	A	slupka.cat.cz
81.0.242.20	PTR	assigned-81-0-242-020.casablanca.cz
81.0.242.20	A	catdomain.eu
81.0.242.20	A	szcz.cz
81.0.242.34	PTR	assigned-81-0-242-034.casablanca.cz
81.0.242.34	A	esiko.cz
81.0.242.39	PTR	assigned-81-0-242-039.casablanca.cz
81.0.242.39	A	www.mpm.cz
81.0.242.39	A	www.tamiya.cz
81.0.242.58	PTR	assigned-81-0-242-058.casablanca.cz
81.0.242.58	A	www.adszs.cz
81.0.242.58	A	adszs.cz
81.0.242.61	PTR	assigned-81-0-242-061.casablanca.cz
81.0.242.61	A	roberthalffinance.cz
81.0.242.61	A	officeteam.cz
81.0.242.66	A	www.cesta.cz
81.0.242.66	A	queerprideparadetabor.cz
81.0.242.67	PTR	assigned-81-0-242-067.casablanca.cz
81.0.242.67	A	www.maage.cz
81.0.242.67	A	maage.cz
81.0.242.69	PTR	assigned-81-0-242-069.casablanca.cz
81.0.242.69	A	miva-slany.cz
81.0.242.78	PTR	assigned-81-0-242-078.casablanca.cz
81.0.242.78	A	www.kendy.cz
81.0.242.78	A	kendy.cz
81.0.242.81	PTR	assigned-81-0-242-081.casablanca.cz
81.0.242.83	PTR	assigned-81-0-242-083.casablanca.cz
81.0.242.83	A	jirivalenta.com
81.0.242.83	A	bazeni.cz
81.0.242.86	PTR	assigned-81-0-242-086.casablanca.cz
81.0.242.86	A	plastickachirurgie.eu
81.0.242.86	A	sukop.eu
81.0.242.94	A	hps.berounsko.cz
81.0.242.100	PTR	assigned-81-0-242-100.casablanca.cz
81.0.242.100	A	gbcs.cz
81.0.242.100	A	www.gbcs.cz
81.0.242.194	A+PTR	ns1.c0re.cz
81.0.242.194	PTR	mgmt.ca.c0re.cz
81.0.242.195	PTR	web1.c0re.cz
81.0.242.195	A	bauermedical.cz
81.0.242.195	A	actasafe.cz
81.0.242.197	A+PTR	app2.c0re.cz
81.0.242.197	A	app.c0re.cz
81.0.242.201	PTR	assigned-81-0-242-201.casablanca.cz
81.0.242.201	A	mail.mhpics.com
81.0.242.250	A	*.startpeople.cz
81.0.242.252	A	apartmany-orlik.cz
81.0.242.255	PTR	bcast-81-0-242-255.casablanca.cz
81.0.243.45	PTR	unassigned-81-0-243-045.casablanca.cz
81.0.243.255	PTR	unassigned-81-0-243-255.ujezd.net