Robtex

Up: 38.99.40.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 38.99.42.0/24
Down right: 38.99.43.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
38.99.42.6	PTR	uw.justin.tv
38.99.42.10	PTR	irc.justin.tv
38.99.42.20	PTR	yale.justin.tv
38.99.42.37	A	mail.csdarchitects.com
38.99.42.37	A	events.befirosyvarioryals.podomatic.com
38.99.42.38	A	events.befirosyvarioryals.podomatic.com
38.99.42.42	A	luke.dc.podomatic.com
38.99.42.46	A	events.befirosyvarioryals.podomatic.com
38.99.42.46	A	www.bailelyowylreorretta.podomatic.com
38.99.42.46	A	events.adolphdziurk178.podomatic.com
38.99.42.51	A	attikdev.com
38.99.42.55	A+PTR	attiksf-dc2.attik.com
38.99.42.55	A	webmail.attik.com
38.99.42.55	A	smtp.attik.com
38.99.42.56	A	mail.attikdev.com
38.99.42.58	PTR	smtp.attik.com
38.99.42.72	PTR	smtp.q.inertiabev.com
38.99.42.72	PTR	smtp1.q.inertiabev.com
38.99.42.72	PTR	smtp.q.nap.inertiabev.com
38.99.42.98	A	mail.sksinvestments.com
38.99.42.165	A+PTR	ns4.cavalryam.com
38.99.42.165	A	ns4.cavalryam.net
38.99.42.213	A	connect.calfund.org
38.99.42.224	A	smtp1.coverity.net