Robtex

Up: 206.227.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 206.227.0.0/19
Down right: 206.227.32.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.227.0.0	PTR	kern.org
206.227.0.10	A	web-import.kern.org
206.227.0.10	A	calm-creditcards.kern.org
206.227.0.18	A	mxin04.kern.org
206.227.0.21	A	smtp.zeus.kern.org
206.227.0.46	A	zimbra.kern.org
206.227.0.64	A+PTR	hpinfo.kern.org
206.227.0.70	A	lookit.kern.org
206.227.0.71	A	web-dev.kern.org
206.227.0.77	A	ketn-filetransfer.kern.org
206.227.0.128	PTR	206-227-0-128.kern.org
206.227.0.129	PTR	206-227-0-129.kern.org
206.227.0.130	A+PTR	barracuda00.kern.org
206.227.0.131	A	webstats.kern.org
206.227.0.132	A	uplanit.org
206.227.0.132	A	u-planit.org
206.227.0.147	A	alertline.kern.org
206.227.0.194	A	backupium.kern.org
206.227.0.195	PTR	206-227-0-195.kern.org
206.227.0.201	A	no.kern.org
206.227.1.1	PTR	206-227-1-1.kern.org
206.227.1.4	A+PTR	cc-fw-untangle02.kern.org
206.227.1.66	PTR	206-227-1-66.kern.org
206.227.1.130	PTR	206-227-1-130.kern.org
206.227.1.131	PTR	206-227-1-131.kern.org
206.227.1.192	PTR	206-227-1-192.kern.org
206.227.2.0	PTR	neet206-227-2-0.kern.org
206.227.2.1	PTR	206-227-2-1.kern.org
206.227.2.17	A	strontium.kern.org
206.227.2.19	A	krypton.kern.org
206.227.2.20	A	proxy0.kern.org
206.227.2.34	A	strontium.kern.org
206.227.2.37	A	speedtest.kern.org
206.227.2.130	A+PTR	mxtemp.kern.org
206.227.2.134	A	calworks.kern.org
206.227.2.134	A	thorium.kern.org
206.227.2.134	A	alertline.kern.org
206.227.3.1	A+PTR	rubix-dmz.kern.org
206.227.3.11	PTR	edit.kern.org
206.227.3.11	A	tularecredit.com
206.227.3.11	A	tularecredit.org
206.227.3.12	PTR	wwwstatic.kern.org
206.227.3.13	PTR	lead.kern.org
206.227.3.133	A+PTR	lists.sisc.kern.org
206.227.3.133	A	hear.kern.org
206.227.3.138	A	cms.kern.org
206.227.3.142	A	zimbra.kern.org
206.227.4.131	PTR	206-227-4-131.kern.org
206.227.4.132	A	mail.gfusd.k12.ca.us
206.227.4.137	A	agb.gfusd.k12.ca.us
206.227.4.183	A	standard.k12.ca.us
206.227.4.183	A	district.standard.k12.ca.us
206.227.5.100	A	nat.edisonschooldistrict.org
206.227.7.40	A	untangle.lakesideusd.org
206.227.8.130	PTR	206-227-8-130.kern.org
206.227.8.130	A	mail.lesd.us
206.227.8.130	A	mail.lamontschooldistrict.org
206.227.9.69	A	ssusd.k12.ca.us
206.227.11.8	A	rocket.rbgusd.k12.ca.us
206.227.11.10	A	rocket.rbgusd.k12.ca.us
206.227.11.14	A	mail01.rbgusd.k12.ca.us
206.227.13.131	A	media.kern.org
206.227.14.2	A+PTR	xserve2020.kern.org
206.227.14.2	A	ctap8.com
206.227.14.2	A	www.ctap8.com
206.227.14.3	A	schoolvideolocker.com
206.227.15.1	PTR	router.bcsd.kern.org
206.227.15.9	A	206-227-15-9.bcsd.kern.org
206.227.15.16	A	206-227-15-16.bcsd.kern.org
206.227.15.60	A	206-227-15-60.bcsd.kern.org
206.227.15.98	A	206-227-15-98.bcsd.kern.org
206.227.15.100	A	206-227-15-100.bcsd.kern.org
206.227.15.124	A	206-227-15-124.bcsd.kern.org
206.227.15.126	A	spamfilter.bcsd.com
206.227.15.131	A+PTR	206-227-15-131.bcsd.kern.org
206.227.15.131	A	ns1.bcsd.com
206.227.15.131	A	ns2.bcsd.com
206.227.15.224	A	206-227-15-224.bcsd.kern.org
206.227.15.234	A	206-227-15-234.bcsd.kern.org
206.227.16.2	PTR	206-227-16-2.kern.org
206.227.16.5	A	nat.fairfax.k12.ca.us
206.227.16.10	A	mail.fairfax.k12.ca.us
206.227.19.3	A+PTR	remote.mcfarland.k12.ca.us
206.227.19.20	A	traffic.mcfarland.k12.ca.us
206.227.22.7	A	mail.ruesd.net
206.227.22.37	A	destiny.beardsley.k12.ca.us
206.227.22.64	PTR	206-227-22-64.kern.org
206.227.22.65	PTR	206-227-22-65.kern.org
206.227.22.67	PTR	206-227-22-67.kern.org
206.227.22.128	PTR	206-227-22-128.kern.org
206.227.23.120	A	gw.wuesd.org
206.227.26.250	A	gw.duesd.org
206.227.26.250	A	gw.delanoelem.k12.ca.us
206.227.27.250	A	mail.richland.k12.ca.us
206.227.37.128	PTR	206-227-37-128.kern.org
206.227.45.68	A	mail.kerncog.org
206.227.45.68	A	external.kerncog.org
206.227.51.192	PTR	206-227-51-192.kern.org
206.227.54.72	A	littleboy.kern.org
206.227.54.157	A	uranus.kern.org
206.227.54.219	PTR	thorium.kern.org
206.227.54.224	A+PTR	slappy.net.kern.org
206.227.54.224	A	net.kern.org
206.227.54.230	A	barium.kern.org
206.227.54.231	A	luna.kern.org
206.227.57.130	A+PTR	nitrogen.kern.org
206.227.57.136	A	btc.kern.org