Robtex

Up: 188.3.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 188.3.48.0/21
Down right: 188.3.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
188.3.57.50	A	mail.rkxbeta.com
188.3.57.50	A	rkxbeta.com
188.3.58.4	A	atolyebaski.com
188.3.59.3	A	ns.globalborsa.com
188.3.59.3	A	*.bilgilimedya.com
188.3.59.3	A	*.globalborsa.com
188.3.59.137	A	ns2.serkantas.com
188.3.60.7	A	mx2.sinerjiworld.com
188.3.60.38	A+PTR	mail.dayen.com.tr
188.3.60.38	A	mail.sinanlifortis.com
188.3.60.38	A	mail2.sinanligroup.com
188.3.60.64	A	fleksan.com
188.3.60.102	A	mailserver.cizgi.net
188.3.60.102	A	mailserver2.cizgi.net
188.3.60.102	A	mail.cizgi.net
188.3.60.239	A	www.huseyinerol.com
188.3.60.239	A	huseyinerol.com
188.3.60.239	A	etapbaski.com
188.3.61.32	PTR	mx2.karelkalip.com.tr
188.3.62.7	A	saturn.mertbilgisayar.com.tr
188.3.62.30	A	smartekofis.com
188.3.62.44	PTR	mail.tek-pa.com.tr
188.3.62.44	A+PTR	mail.tek-ser.com.tr
188.3.62.44	A	mail.teknikgrup.net
188.3.62.69	PTR	exchange.antivir.com.tr
188.3.62.73	PTR	ekoldenizcilik.com.tr
188.3.62.74	PTR	karelkalip.com.tr
188.3.62.82	PTR	mail.irene.com.tr
188.3.62.97	PTR	mail.dayen.com.tr
188.3.62.99	A	mx02.horacore.com
188.3.62.99	A	mail.forabilgiislem.com.tr
188.3.62.99	A	mail.horacore.com
188.3.62.178	PTR	mail.kayalarkimya.com.tr
188.3.62.192	A	mail.ntsr.com.tr
188.3.63.13	A	mail.antlogs.com
188.3.63.23	A	entworkspace.kocsistem.com.tr
188.3.63.27	A	tennisathilton.com
188.3.63.27	A	tennisatconrad.com
188.3.63.28	PTR	mail.ozdisan.com
188.3.63.34	A	mail.densaholding.com
188.3.63.73	PTR	mail.istanbulkonut.com.tr
188.3.63.73	PTR	mail.istanbulotobus.com.tr
188.3.63.82	PTR	mail2.opakim.com.tr
188.3.63.84	PTR	mail.mdsas.com.tr
188.3.63.84	A	entmam.kocsistem.com.tr
188.3.63.86	PTR	mail.diapro.com.tr
188.3.63.86	PTR	entworkspace.kocsistem.com.tr
188.3.63.150	PTR	mx.vitel.com.tr