Robtex

Up: 74.123.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 74.123.28.0/23
Down right: 74.123.30.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.123.28.4	A	dns.untanglesystems.com
74.123.28.4	A	dns.untanglenetworks.net
74.123.28.4	A	dns.untangle.com
74.123.28.10	A	home.untangle.com
74.123.28.10	A	phones.untangle.com
74.123.28.13	PTR	forums.untangle.com
74.123.28.16	PTR	forums.untangle.com
74.123.28.18	A	cmd.untangle.com
74.123.28.20	A	library.untangle.com
74.123.28.23	A	redphish.com
74.123.28.23	A	genuineuntangleappliances.info
74.123.28.23	A	genuineuntangleappliance.org
74.123.28.40	A	supportsys.untangle.com
74.123.28.40	A	supportsystem.untangle.com
74.123.28.44	A+PTR	updates.untangle.com
74.123.28.47	PTR	relay.untangle.com
74.123.28.48	A	release.untangle.com
74.123.28.50	A	develop.untangle.com
74.123.28.55	A+PTR	wiki.untangle.com
74.123.28.55	A	boxbackup.untangle.com
74.123.28.55	A	wiki-51.untangle.com
74.123.28.56	A	wiki-beta.untangle.com
74.123.28.59	A+PTR	download.untangle.com
74.123.28.68	A	license.untangle.com
74.123.28.77	A	webupdates.untangle.com
74.123.28.88	A	reseller.esoft.com
74.123.28.242	A	mcrunkelson.org
74.123.28.242	A	lauriemac.org
74.123.28.242	A	mcrunkelson.com
74.123.28.246	A	harleylarsen.com
74.123.28.246	A	larsens.co
74.123.28.252	A	demo10.untangle.com
74.123.28.252	A	demo.untangle.com
74.123.29.1	A	host52.untangle.com
74.123.29.2	A	raekwon.untangle.com
74.123.29.3	A+PTR	host51.untangle.com
74.123.29.4	A+PTR	dns2.untangle.com
74.123.29.4	A	dns2.untanglenetworks.com
74.123.29.4	A	dns2.untanglesystems.com
74.123.29.5	PTR	mail.untangle.com
74.123.29.6	PTR	phones.untangle.com
74.123.29.16	A	bugzilla.untangle.com
74.123.30.21	A	pootle.untangle.com
74.123.30.71	A	host51.untangle.com
74.123.31.4	A	dns3.untangle.com
74.123.31.11	A	bugzilla.untangle.com
74.123.31.15	A	download.untangle.com
74.123.31.16	A	wiki-51.untangle.com
74.123.31.16	A	wiki-50.untangle.com
74.123.31.16	A	wiki.untangle.com
74.123.31.17	A	updates.untangle.com
74.123.31.25	A	totaldefense.com
74.123.31.30	PTR	www.untangle.com
74.123.31.30	A	www.metavize.com
74.123.31.30	A	store.untangle.com
74.123.31.33	A	totaldefense.com
74.123.31.49	A	pootle.untangle.com