Robtex

Up: 216.57.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 216.57.64.0/21
Down right: 216.57.72.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.57.65.21	A	hapsco.com
216.57.66.179	A	cabanasierravista.com
216.57.66.179	A	cuisinecaters.com
216.57.66.240	PTR	host-216-57-66-240.cal.net
216.57.69.3	PTR	host-216-57-69-3.cal.net
216.57.69.19	PTR	host-216-57-69-19.cal.net
216.57.69.34	PTR	host-216-57-69-34.cal.net
216.57.69.48	PTR	host-216-57-69-48.cal.net
216.57.69.64	PTR	host-216-57-69-64.cal.net
216.57.69.65	PTR	host-216-57-69-65.cal.net
216.57.69.81	PTR	host-216-57-69-81.cal.net
216.57.69.82	PTR	host-216-57-69-82.cal.net
216.57.69.97	PTR	host-216-57-69-97.cal.net
216.57.69.98	PTR	host-216-57-69-98.cal.net
216.57.69.128	PTR	host-216-57-69-128.cal.net
216.57.69.145	PTR	host-216-57-69-145.cal.net
216.57.69.178	PTR	host-216-57-69-178.cal.net
216.57.69.192	PTR	host-216-57-69-192.cal.net
216.57.69.195	PTR	host-216-57-69-195.cal.net
216.57.69.210	PTR	host-216-57-69-210.cal.net
216.57.69.242	PTR	host-216-57-69-242.cal.net
216.57.69.243	PTR	host-216-57-69-243.cal.net
216.57.70.19	PTR	host-216-57-70-19.cal.net
216.57.70.138	A	thedonlonfamily.info
216.57.70.139	A	machiatto.com
216.57.70.166	A	aisuvu.net
216.57.71.2	PTR	ns1-rec.cal.net
216.57.71.2	A	ns1.directcon.net
216.57.71.2	A	zeus.directcon.net
216.57.71.3	PTR	ns2.cal.net
216.57.71.20	A	canit-web.directcon.net
216.57.71.20	A	corp.cal.net
216.57.71.20	A	canitweb.cal.net
216.57.71.21	A	canitscan1.cal.net
216.57.71.23	A	mail.cal.net
216.57.71.40	A	ns3.cal.net
216.57.71.40	A	ns3.directcon.net
216.57.71.46	A	newmail.goldrush.com
216.57.71.46	A	mail.cal.net
216.57.71.50	PTR	host-216-57-71-50.cal.net
216.57.71.51	PTR	host-216-57-71-51.cal.net
216.57.71.54	A	mail.caldotnet.com
216.57.71.54	A	edcwisp.net
216.57.71.54	A	caldotnet.com
216.57.71.60	A	zenoss5.cal.net
216.57.71.64	PTR	host-216-57-71-64.cal.net
216.57.71.65	PTR	host-216-57-71-65.cal.net
216.57.71.66	PTR	host-216-57-71-66.cal.net
216.57.71.67	PTR	host-216-57-71-67.cal.net
216.57.71.72	A	edcwisp.com
216.57.71.98	PTR	host-216-57-71-98.cal.net
216.57.71.98	A	placerville-downtown.org
216.57.71.100	A	darlenesvacationcabins.com
216.57.71.103	A	boberdmann.com
216.57.71.103	A	columbinecommunications.com
216.57.71.161	PTR	host-216-57-71-161.cal.net
216.57.71.161	A	cal.net
216.57.71.209	PTR	wh01.cal.net
216.57.71.209	A	mail.resourceaccords.com
216.57.71.209	A	suttercreekprivatelenders.com
216.57.71.238	A	cal.net
216.57.71.238	A	www.cal.net
216.57.71.244	A	sys.cal.net
216.57.71.254	A	wispprequal.com
216.57.73.22	A	lnzranch.com
216.57.74.35	PTR	host-216-57-74-35.cal.net
216.57.74.80	PTR	host-216-57-74-80.cal.net
216.57.75.2	A	lookingfortennis.com
216.57.75.2	A	looking4tennis.com
216.57.75.3	A	thestarrranch.com
216.57.75.9	A	mail.telecom-west.com
216.57.76.209	PTR	host-216-57-76-209.cal.net
216.57.76.251	A	latendorf.com
216.57.77.14	A	mail.hemington.com
216.57.78.4	A	dividebuckeye.com
216.57.78.4	A	sierraspot.com
216.57.78.4	A	gtownbuckeye.com
216.57.78.5	A	remote.sierratechnical.com
216.57.78.18	PTR	host-216-57-78-18-cal.net
216.57.78.33	PTR	host-216-57-78-33-cal.net
216.57.78.35	PTR	host-216-57-78-35-cal.net
216.57.78.49	PTR	host-216-57-78-49-cal.net
216.57.78.51	PTR	host-216-57-78-51-cal.net
216.57.78.51	A	bongo.crushedhat.net
216.57.78.51	A	bongo.crushedhat.com
216.57.78.98	PTR	host-216-57-78-98-cal.net
216.57.78.107	A	mail.holytrinityparish.org
216.57.78.112	PTR	host-216-57-78-112-cal.net
216.57.78.117	A	gw1.sheridaninc.com
216.57.78.120	A	gw1.gw4m.org
216.57.78.122	A	mail.tes-it.com
216.57.78.146	PTR	host-216-57-78-146-cal.net
216.57.78.177	PTR	host-216-57-78-177-cal.net
216.57.78.224	PTR	host-216-57-78-224-cal.net
216.57.78.241	PTR	host-216-57-78-241-cal.net
216.57.79.2	A+PTR	frank.8950aaa.com
216.57.79.2	A	frank.navis-radius.com
216.57.79.2	A	frank.lucent-radius.com
216.57.79.26	A	clubsportvalleyvista.com
216.57.79.26	A	topdogtennis.com
216.57.79.26	A	leaguesforfun.com
216.57.79.27	A	www.norcalflexleagues.com
216.57.79.34	PTR	host-216-57-79-34.cal.net
216.57.79.34	A	www.maxon3d.com
216.57.79.34	A	mail.plugincafe.com
216.57.79.78	A	nettech.pro
216.57.79.142	A	norcalrobotics.com
216.57.79.142	A	www.norcalrobotics.com
216.57.79.230	A	mail.dataentree.com
216.57.79.230	A	cam.dataentree.com
216.57.79.242	A	mail.finenlaw.com
216.57.79.245	A	ns1.fenris.net