Robtex

Up: 194.146.140.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 194.146.141.0/25
Down right: 194.146.141.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.146.141.3	A+PTR	postfix.vntu.edu.ua
194.146.141.3	A	mail.vntu.edu.ua
194.146.141.3	A	webmail.vntu.edu.ua
194.146.141.4	PTR	ws4.vntu.edu.ua
194.146.141.4	A	ksu.vntu.edu.ua
194.146.141.4	A	dn.vntu.edu.ua