Robtex

Up: 5.39.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 5.39.196.0/23
Down right: 5.39.198.0/23

IP	Type	Hostname
5.39.197.136	PTR	ip-5-39-197-136.static.tvk.wroc.pl
5.39.198.30	PTR	gw.cmts.tvk.wroc.pl
5.39.198.70	PTR	gw.cmts.tvk.wroc.pl
5.39.198.242	PTR	pyro.tvk.wroc.pl
5.39.198.244	A+PTR	wrc-kol-vi-li-101.tvk.pl
5.39.198.249	A+PTR	bok.tvk.wroc.pl
5.39.198.250	A+PTR	fdns2.tvk.wroc.pl
5.39.198.250	A	fdns2.api.net.pl
5.39.198.251	A+PTR	backoffice.tvk.wroc.pl
5.39.198.254	PTR	gw.srv.tvk.wroc.pl
5.39.199.1	PTR	gateway.api.net.pl
5.39.199.2	A+PTR	gryf.api-internet.com
5.39.199.2	A	fdns1.api.net.pl
5.39.199.3	PTR	fdns1.api.net.pl
5.39.199.86	PTR	ip-5-39-199-86.static.tvk.wroc.pl