Robtex

Up: 38.228.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 38.229.0.0/17
Down right: 38.229.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
38.229.0.2	A+PTR	gw05-ge2.iad01.cymru.com
38.229.0.4	A	kilsek03.iad01.cymru.com
38.229.0.5	A	lillend.iad01.cymru.com
38.229.0.6	A	marilith.iad01.cymru.com
38.229.1.1	A	hsrp-vlan21.iad01.cymru.com
38.229.1.8	A	gw02-fa1-0.iad01.cymru.com
38.229.1.13	A	ntpresearch.cymru.com
38.229.1.14	A	server14.teamcymru.net
38.229.2.2	A	serv11.iad01.cymru.com
38.229.33.1	A	va04.ord01.cymru.com
38.229.33.5	A+PTR	jabba.cymru.com
38.229.33.6	A+PTR	milo.cymru.com
38.229.33.6	A	irc.first.org
38.229.36.7	A+PTR	lists.cymru.com
38.229.36.36	A	malwarehawk.cymru.com
38.229.36.36	A	malwarehawk.com
38.229.36.50	A	totalhash.com
38.229.52.9	A	0.vornexl.pool.ntp.org
38.229.52.9	A	0.palm.pool.ntp.org
38.229.52.9	A	1.lede.pool.ntp.org
38.229.54.9	A	2.control4.pool.ntp.org
38.229.56.9	A	2.aerohive.pool.ntp.org
38.229.58.9	A	3.us.pool.ntp.org
38.229.58.9	A	0.viking.pool.ntp.org
38.229.58.9	A	3.sourcefire.pool.ntp.org
38.229.60.9	PTR	ntp05.cymru.com
38.229.62.9	A	3.lenbrook.pool.ntp.org
38.229.66.2	A+PTR	server15.cymru.com
38.229.66.3	A+PTR	ns1.cymru.com
38.229.66.7	A	mx1.cymru.com
38.229.66.19	A	speedtest.team-cymru.org
38.229.70.2	A	bwscanner.team-cymru.org
38.229.70.3	A	tc01.dragonresearchgroup.org
38.229.70.4	A	com.htmlhtmll6nvqsqivhrunqvs.tor2web.com
38.229.70.4	A	flibuwz3ij5czyks.tor2web.org
38.229.71.1	PTR	clock.team-cymru.org
38.229.71.1	A	3.us.pool.ntp.org
38.229.71.1	A	1.vyatta.pool.ntp.org
38.229.72.1	PTR	gw01-vl208.ord07.cymru.com
38.229.72.8	A	jepsonii.torproject.org
38.229.72.9	A	motor.torproject.org
38.229.72.12	A	ns1.torproject.org
38.229.72.12	A	fallax.torproject.org
38.229.72.16	A	www.torproject.com
38.229.72.16	A	www.onion-router.net
38.229.74.10	A	ns6-cbl.abuseat.org
38.229.76.2	PTR	serv01-as10.ord07.cymru.com
38.229.76.3	PTR	uschi03.sixxs.net
38.229.76.3	A	*.hk.ipv4.sixxs.org
38.229.76.3	A	ipv6.whatismyipv6.net.ipv4.sixxs.org
38.229.76.4	PTR	ns10.dnswl.org
38.229.78.20	A	androidsandbox.com
38.229.78.21	A	floridahpg.org
38.229.78.50	A	viruscrowd.com
38.229.79.2	A	torproxy10.teamcymru.net
38.229.82.25	A	www.torproject.com
38.229.82.25	A	torproject.com
38.229.82.25	A	torproject.org
38.229.84.0	A	vteamunix.info
38.229.84.1	A	xxxdemonplaguexxx.info
38.229.84.2	A	xxxxxtsghxxxxx.info
38.229.84.3	A	xzsonicszx.info
38.229.145.88	A	kump.us
38.229.145.169	A	cldr.us
38.229.147.255	A	tsmj.us
38.229.160.61	A	efcjk.us
38.229.166.147	A	wetr.us
38.229.167.39	A	wgsc.us
38.229.169.55	A	wnkm.us
38.229.170.19	A	wpug.us
38.229.188.209	A	icdp.us