Robtex

Up: 192.12.234.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.12.234.0/25
Down right: 192.12.234.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.12.234.138	PTR	vlan685.inr-310-ewdc.berkeley.edu
192.12.234.140	A+PTR	ns2.dns.ucla.edu
192.12.234.140	A	ucla-ns.berkeley.edu
192.12.234.167	A	mon-ucb1.noc.ucla.edu
192.12.234.168	A	logon-ucb1.logon.ucla.edu
192.12.234.170	A+PTR	info-ucb1.smtp.ucla.edu
192.12.234.172	A+PTR	mx-ucb1.smtp.ucla.edu
192.12.234.172	A	ucla-cts07.ist.berkeley.edu
192.12.234.172	A	mx.smtp.ucla.edu
192.12.234.173	A	rx-ucb1.smtp.ucla.edu
192.12.234.174	PTR	tx0-ucb1.smtp.ucla.edu
192.12.234.175	A	tx1-ucb1.smtp.ucla.edu
192.12.234.176	A	tx2-ucb1.smtp.ucla.edu
192.12.234.177	A	tx3-ucb1.smtp.ucla.edu
192.12.234.179	A	ldap-ucb2.ldap.auth.ucla.edu
192.12.234.182	A	info-ucb2.smtp.ucla.edu
192.12.234.183	A	dcc-ucb1.smtp.ucla.edu
192.12.234.184	A+PTR	mx-ucb2.smtp.ucla.edu
192.12.234.184	A	mx.smtp.ucla.edu
192.12.234.184	A	v4.smtp.ucla.edu
192.12.234.185	A+PTR	rx-ucb2.smtp.ucla.edu
192.12.234.186	A+PTR	tx0-ucb2.smtp.ucla.edu
192.12.234.187	A	tx1-ucb2.smtp.ucla.edu
192.12.234.188	A	tx2-ucb2.smtp.ucla.edu
192.12.234.189	A	tx3-ucb2.smtp.ucla.edu