Robtex

Up: 216.138.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 216.138.64.0/20
Down right: 216.138.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.138.64.0	PTR	unsi-216-138-64-0.unsi.net
216.138.64.35	A	mail.mediacart.com
216.138.65.96	PTR	unsi-216-138-65-96.unsi.net
216.138.65.98	PTR	unsi-216-138-65-98.unsi.net
216.138.65.131	PTR	unsi-216-138-65-131.unsi.net
216.138.66.2	PTR	unsi-216-138-66-2.unsi.net
216.138.66.60	A	dns1.planeteshop.com
216.138.66.61	A	dns2.planeteshop.com
216.138.68.3	PTR	unsi-216-138-68-3.unsi.net
216.138.68.3	A	postasylum.com
216.138.68.10	A	pureevilmusic.com
216.138.68.167	A	havenbehavioral.org
216.138.69.1	PTR	unsi-216-138-69-1.unsi.net
216.138.69.99	PTR	unsi-216-138-69-99.unsi.net
216.138.69.105	A	mail.advantix.net
216.138.69.105	A	mail.advantixsolutions.com
216.138.69.228	PTR	unsi-216-138-69-228.unsi.net
216.138.69.232	PTR	unsi-216-138-69-232.unsi.net
216.138.71.4	A	fbmx1-test.brownies.net
216.138.71.66	PTR	mail.cvlci.com
216.138.71.130	PTR	mail.taxquest.com
216.138.72.4	A	mail.apogeepartners.net
216.138.72.84	A	mail.woodhausinc.com
216.138.72.130	PTR	mail.shannongracey.com
216.138.72.202	A	mail.dallaslutheranschool.org
216.138.72.202	A	mail60704.dallaslutheranschool.com
216.138.72.227	PTR	mail.utb.com
216.138.73.18	A	mail.cbs11tv.com
216.138.73.18	A	mail.ktvt.com
216.138.73.67	A	mail.goodloerealty.com
216.138.73.128	PTR	unsi-216-138-73-128.unsi.net
216.138.73.142	A	queue.optimumreturn.com
216.138.73.150	A	mail.legacytexasgroup.org
216.138.73.150	A	mail.legacytexasbank.net
216.138.74.0	PTR	unsi-216-138-74-0.unsi.net
216.138.74.138	A	mail.4c2electrical.com
216.138.74.206	A	exchange.gvbarchitects.com
216.138.75.119	A	ebuenoclub.com
216.138.78.3	PTR	unsi-216-138-78-3.unsi.net
216.138.79.33	A	hhmerchantusa.com
216.138.79.33	A	mypcaccessories.com
216.138.79.33	A	centuryartdfw.com
216.138.79.73	A	www.ricepotexpress.com
216.138.79.73	A	ricepotexpress.com
216.138.79.73	A	www.highlandfire.com
216.138.79.226	PTR	unsi-216-138-79-226.unsi.net
216.138.79.226	A	dns3.multix.com
216.138.80.2	A	mail.dces.com
216.138.80.2	A	mail.surecompanies.com
216.138.80.211	A	*.southandwestern.net
216.138.80.211	A	mail.southandwestern.net
216.138.80.211	A	southandwestern.net
216.138.80.212	A	thespecialtycompany.biz
216.138.80.226	A+PTR	mail.englishcolor.com
216.138.80.226	A	mailhost.englishcolor.com
216.138.80.226	A	mail.englishcollisionequipment.com
216.138.81.249	A	pop.ttimail.com
216.138.81.249	A	mailhost.ttimail.com
216.138.81.249	A	smtp.ttimail.com
216.138.82.106	A	mail.tsigroup.us
216.138.82.195	A+PTR	mail.owensinc.com
216.138.82.226	PTR	unsi-216-138-82-226.unsi.net
216.138.83.194	A	apexexchange.apexrestaurants.com
216.138.83.195	A	mail.apexrestaurants.com
216.138.83.196	A	mavencapital.net
216.138.84.32	PTR	unsi-216-138-84-32.unsi.net
216.138.84.130	PTR	unsi-216-138-84-130.unsi.net
216.138.84.192	PTR	unsi-216-138-84-192.unsi.net
216.138.87.32	PTR	unsi-216-138-87-32.unsi.net
216.138.88.97	PTR	unsi-216-138-88-97.unsi.net
216.138.88.130	PTR	unsi-216-138-88-130.unsi.net
216.138.88.130	A	dns02.officesmartusa.com
216.138.88.130	A	dns02.wistcloud.com
216.138.88.138	A	webhost.wist.com
216.138.88.165	A	www.aquapower.com
216.138.88.225	PTR	unsi-216-138-88-225.unsi.net
216.138.89.194	PTR	unsi-216-138-89-194.unsi.net
216.138.89.198	A	mail.myprivateletters.com
216.138.89.225	PTR	ns2.visitalk.com
216.138.90.67	PTR	nospam.solacenetworks.com
216.138.90.82	A	mail3.resulte.com
216.138.91.28	A	dns2.dallas-online.com
216.138.91.100	A	ns.crww.net
216.138.91.117	A	mail.torqflo.com
216.138.91.117	A	mail.compressorworks.com
216.138.91.167	A	ns2.illustro.com
216.138.91.172	A	codekillaz.net
216.138.92.83	A	mail.enhancedoilres.com
216.138.93.0	PTR	unsi-216-138-93-0.unsi.net
216.138.93.7	A	hh.barrios.com
216.138.93.22	A	mail2.barrios.com
216.138.93.22	A	ww2.barrios.com
216.138.93.98	PTR	unsi-216-138-93-98.unsi.net
216.138.93.129	A	out.barrios.com
216.138.93.130	PTR	mail4.barrios.com
216.138.93.193	PTR	unsi-216-138-93-193.unsi.net
216.138.94.98	PTR	unsi-216-138-94-98.unsi.net
216.138.94.182	A	adc.junotsystems.com
216.138.95.66	PTR	unsi-216-138-95-66.unsi.net
216.138.95.66	A	mail.gsnetx.org
216.138.95.86	A	texascookietime.org
216.138.95.86	A	texascookietime.com
216.138.95.87	A	gsnetx.com