Robtex

Up: 212.15.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 212.15.0.0/22
Down right: 212.15.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.15.0.146	PTR	mail2.engingrup.com
212.15.0.146	PTR	mail2.yontemdisticaret.com.tr
212.15.0.146	PTR	mail2.yontemltd.com.tr
212.15.0.149	PTR	mail.enginsdh.net
212.15.1.3	PTR	mail.cerrahgil.com.tr
212.15.1.116	A	brckevmailbox.borcelik.com
212.15.1.131	PTR	mail.nbr.com.tr
212.15.1.163	A	tns-global.com.tr
212.15.1.163	A	ns1.piar.com.tr
212.15.1.163	A	www.piar.com.tr
212.15.1.164	A+PTR	mail.tns-global.com.tr
212.15.2.4	PTR	smtpgw.akb.org.tr
212.15.2.4	PTR	smtpgw.tspakb.org.tr
212.15.2.5	PTR	akin1.akintekstil.com.tr
212.15.2.44	A+PTR	sura.kuveytturk.com.tr
212.15.2.46	A	drcexpe.kuveytturk.com.tr
212.15.2.50	A+PTR	mail.burosit.com
212.15.2.50	PTR	mail.enborek.com
212.15.2.50	PTR	mail.ermetal.com
212.15.2.51	PTR	mail.burosit.com
212.15.2.51	PTR	mail.enborek.com
212.15.2.51	PTR	mail.ermetal.com
212.15.2.60	PTR	mail.kontekinsaat.com.tr
212.15.2.66	PTR	mail.platofinans.com
212.15.2.66	PTR	mail.platofs.com
212.15.2.66	PTR	mail.platofinans.com.tr
212.15.2.68	PTR	platofinans.com
212.15.2.68	PTR	mail.platofinans.com
212.15.2.68	PTR	mail.platofs.com
212.15.2.118	PTR	mail.fabeks.com
212.15.2.118	PTR	mail.fabeks.eu
212.15.2.147	PTR	mail.atasunoptik.com.tr
212.15.2.147	PTR	mail2.atasunoptik.com.tr
212.15.2.195	PTR	mail.buka.com.tr
212.15.2.195	A	mail.bukabilgisayar.com
212.15.2.195	A	mail.bukatechnology.com
212.15.2.196	PTR	mail.buka.com.tr
212.15.2.197	PTR	mail.buka.com.tr
212.15.4.49	A+PTR	mail.kontekinsaat.com.tr
212.15.4.49	A+PTR	webmail.kontekinsaat.com.tr
212.15.4.50	A+PTR	pop3.kontekinsaat.com.tr
212.15.4.51	A	kontekftp.kontekinsaat.com.tr
212.15.4.178	A+PTR	mail.erdemirlojistik.com.tr
212.15.4.178	A+PTR	mail.erenco.com.tr
212.15.5.17	A	www.acibademmobil.com.tr
212.15.5.17	A	4449724.com
212.15.5.17	A	www.acibademmobilsaglik.biz
212.15.5.19	PTR	erkenteshisvetedavi.com
212.15.5.19	PTR	www.erkenteshisvetedavi.com
212.15.5.42	A	icimrahat.com.tr
212.15.5.51	A+PTR	diyet.acibadem.com.tr
212.15.5.53	A	blog.acibademmobil.com.tr
212.15.5.54	A+PTR	omurgasagligimerkezi.com
212.15.5.54	A+PTR	omurgasagligimerkezi.net
212.15.5.54	PTR	www.omurgasagligimerkezi.com
212.15.5.58	A+PTR	mail2.acibadem.com.tr
212.15.5.58	A+PTR	mail3.acibadem.com.tr
212.15.5.63	PTR	np.acibadem.com.tr
212.15.5.70	A+PTR	xn--acbademlabmed-49b.com.tr
212.15.5.70	A	www.acibademlabmed.com.tr
212.15.5.70	A	asglabmed.com
212.15.5.72	A	mail.jfkhastanesi.com
212.15.5.72	A	mail.tr.hygeia-group.com
212.15.5.73	A+PTR	mail4.acibadem.com.tr
212.15.5.73	A+PTR	mail5.acibadem.com.tr
212.15.5.80	A	keremaydinlarvakfi.org
212.15.5.80	A	keremaydinlar.net
212.15.5.80	A	keremaydinlar.info
212.15.5.89	PTR	npglab.com
212.15.5.89	A+PTR	npglab.org
212.15.5.89	PTR	www.npglab.com
212.15.5.90	PTR	email.acibadem.com.tr
212.15.5.90	PTR	mail.acibadem.hr
212.15.5.90	PTR	mail.keremaydinlarvakfi.org
212.15.5.103	A	www.acibadembodrumcard.com
212.15.5.103	A	acibadembodrumcard.com
212.15.5.105	A	thebetterliving.com
212.15.5.107	A	email.ahkalbim.com
212.15.5.108	A	acibademsaglikyatirimlari.com
212.15.5.111	A	tumvucutmr.net
212.15.5.121	A	tumorkonseyi.com
212.15.5.125	A+PTR	acbdm.com
212.15.5.125	A+PTR	www.acbdm.com
212.15.5.141	A+PTR	erkenteshis.com
212.15.5.141	PTR	acibademannebebek.com
212.15.5.141	A+PTR	www.erkenteshis.com
212.15.5.155	A+PTR	www.ketoplanlayicim.com
212.15.5.155	A+PTR	preprod.ketoplanlayicim.com
212.15.5.155	A+PTR	ketoplanlayicim.com
212.15.5.159	PTR	www.spineandspinalcordcenter.com
212.15.5.159	PTR	acibademkanser.com
212.15.5.159	PTR	www.omurgasagligimerkezleri.com
212.15.5.161	A	beykentsarksofrasi.com
212.15.5.161	A	mail.sirvankebap.com
212.15.5.161	A	vadiocakbasi.com
212.15.5.178	PTR	acibadem.by
212.15.5.178	PTR	organtransplantsaveslife.com
212.15.5.178	PTR	acibadem.kg
212.15.5.200	A	acibademonline.com
212.15.5.207	A	av.acibadem.com.tr
212.15.5.211	A	aplus.web.tr
212.15.5.211	A	www.aplus.web.tr
212.15.5.244	A	clinlab.com.tr
212.15.5.245	PTR	acibadem.rs
212.15.5.245	PTR	www.acibadem.com.de
212.15.5.245	PTR	www.acibadem.ir
212.15.5.248	PTR	finalfouristanbul2011.com
212.15.5.248	PTR	breastanbul.org
212.15.5.248	PTR	www.finalfouristanbul2011.com
212.15.7.4	PTR	mail.colinsacademy.com
212.15.7.4	PTR	smtp.colinsacademy.com
212.15.7.4	PTR	mail.colinsjeans.com
212.15.7.11	PTR	mail.eroglu.com
212.15.7.13	A	erp.colins.com.tr
212.15.7.17	A+PTR	smtp.colinsjeans.com
212.15.7.17	PTR	smtp.dnmtextile.com
212.15.7.17	A+PTR	smtp.eroglu.com
212.15.7.30	A	erogluholding.com.tr
212.15.7.30	A	erogluholding.com
212.15.7.30	A	www.erogluholding.com.tr
212.15.7.32	PTR	mail.colinsjeans.com
212.15.7.32	PTR	mail.dnmtextile.com
212.15.7.32	PTR	mail.eroglu.com
212.15.7.43	A	wiki.colins.ua
212.15.7.52	A	istanbullounge2.com.tr
212.15.7.52	A	erasta.com.tr
212.15.7.52	A	dnmtextile.com
212.15.7.62	A	colinsbizeuyar.com
212.15.7.62	A	colinsjeans.com
212.15.7.62	A	www.colins.com.ua
212.15.7.65	A	ersorme.com
212.15.7.78	A	yenimodaevleri.com
212.15.7.90	A	www.skylandistanbul.net
212.15.7.90	A	istanbulskyland.net
212.15.7.90	A	homskyland.com
212.15.7.105	A	dnmdenim.com