Robtex

Up: 178.235.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 178.235.240.0/23
Down right: 178.235.242.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
178.235.240.67	A	dns.terranet.pl
178.235.240.68	A	pop.terramail.pl
178.235.240.255	PTR	255.240.235.178-rev.hti.pl
178.235.241.3	PTR	178235241003.warszawa.vectranet.pl
178.235.241.3	A	tomaszpiontek.pl
178.235.241.3	A	rehasportclinic.pl
178.235.241.5	A	rehapoint.org
178.235.241.16	PTR	178235241016.warszawa.vectranet.pl
178.235.241.16	A	dl.eko.one.pl
178.235.241.102	A	itcave.net
178.235.241.255	PTR	255.241.235.178-rev.hti.pl
178.235.242.0	PTR	178235242000.warszawa.vectranet.pl
178.235.242.200	PTR	200.242.235.178-rev.hti.pl
178.235.242.200	A	macsoftware.pl
178.235.242.200	A	nas.macsoftware.pl
178.235.242.255	PTR	255.242.235.178-rev.hti.pl
178.235.243.7	PTR	178235243007.warszawa.vectranet.pl
178.235.243.17	A	mail-out3.promonotes.net
178.235.243.18	A+PTR	mail-out4.promonotes.net