Robtex

Up: 194.33.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 194.33.72.0/23
Down right: 194.33.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.33.72.1	PTR	72-1.frinet.pl
194.33.72.1	A	ns1.frinet.pl
194.33.72.2	PTR	72-2.frinet.pl
194.33.72.3	PTR	72-3.frinet.pl
194.33.72.3	A	meblox.eu
194.33.72.3	A	srv1.frinet.pl
194.33.73.1	PTR	73-1.fasternet.pl
194.33.74.3	PTR	74-3.frinet.pl
194.33.75.14	PTR	75-14.frinet.pl
194.33.75.22	PTR	75-22.frinet.pl
194.33.75.225	PTR	75-225.frinet.pl