Robtex

Up: 213.74.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 213.74.48.0/22
Down right: 213.74.52.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.74.48.1	PTR	host-213-74-48-1.superonline.net
213.74.48.1	A	mail.turkcellgrup.com
213.74.48.1	A	mail.turkcellgrubu.com
213.74.48.99	PTR	mail.tjk.org
213.74.48.171	PTR	mail.genelsigorta.com
213.74.48.171	PTR	server.genelsigorta.com
213.74.48.180	PTR	posta.barcomment.com
213.74.48.180	A	mail.guvenlisehirler.com
213.74.48.183	PTR	elmor.com.tr
213.74.48.185	A+PTR	mail.pro-line.com.tr
213.74.48.185	A	posta.barcomment.com
213.74.48.185	A	mail.mozaiksistem.com.tr
213.74.48.188	PTR	host-213-74-48-188.superonline.net
213.74.48.188	A	www.pro-line.com.tr
213.74.48.190	PTR	host-213-74-48-190.superonline.net
213.74.48.253	PTR	mail.kinaygroup.com
213.74.49.0	PTR	host-213-74-49-0.superonline.net
213.74.49.35	PTR	host-213-74-49-35.superonline.net
213.74.49.35	A	ws-portal.mediamarkt.com.tr
213.74.49.35	A	ws-ecomm.mediamarkt.com.tr
213.74.49.42	PTR	host-213-74-49-42.superonline.net
213.74.49.84	PTR	mail.cukurovaithalat.com.tr
213.74.49.100	A+PTR	mail.debisfinans.com.tr
213.74.49.101	PTR	host-213-74-49-101.superonline.net
213.74.49.106	PTR	host-213-74-49-106.superonline.net
213.74.49.106	A	ns1.tvhbdorduncukurultay.com
213.74.49.106	A	ns1.tued.org.tr
213.74.49.210	PTR	lebibyalkin.com.tr
213.74.49.255	PTR	host-213-74-49-255.superonline.net
213.74.50.0	PTR	host-213-74-50-0.superonline.net
213.74.50.2	PTR	tele.net.tr
213.74.50.162	PTR	mail.marslogistics.com
213.74.50.162	PTR	mail.marsgroup.com.tr
213.74.50.162	PTR	mail.marslogistics.com.tr
213.74.51.83	PTR	artsistem.com
213.74.51.83	A	sensei.com.tr
213.74.51.83	A	artescorp.com
213.74.51.84	PTR	mail.artsistem.com
213.74.51.84	A	mail.pcbayi.com
213.74.51.85	PTR	pcbayi.com
213.74.51.86	PTR	mail.pcbayi.com
213.74.51.101	PTR	host-213-74-51-101.superonline.net
213.74.51.101	A	dark.ist
213.74.51.101	A	ns1.froma.istanbul
213.74.51.146	PTR	posta.mopas.com.tr
213.74.51.146	A	posta.mopashipermarket.com
213.74.51.162	PTR	isaint.unitim.com.tr
213.74.51.162	A	webmail.unitim.com.tr
213.74.51.163	PTR	mail.imteks.com.tr
213.74.51.168	PTR	host-213-74-51-168.superonline.net
213.74.51.168	A	webmail2.unitim.com.tr
213.74.51.170	PTR	bullock.unitim.com.tr
213.74.51.171	A+PTR	tomcat.unitim.com.tr
213.74.51.171	A	www.accessorize-tr.com
213.74.51.171	A	www.tommyhilfiger.com.tr
213.74.51.178	A+PTR	mail.denka-as.com
213.74.51.178	A	mail.egemenerji.com
213.74.51.178	A	mail.britishsteelturkey.com
213.74.51.179	PTR	mail.coruscelik.com
213.74.51.180	PTR	host-213-74-51-180.superonline.net
213.74.51.251	PTR	host-213-74-51-251.superonline.net
213.74.52.83	PTR	host-213-74-52-83.superonline.net
213.74.52.226	PTR	host-213-74-52-226.superonline.net
213.74.53.76	A	touchyourdata.com
213.74.53.167	PTR	host-213-74-53-167.superonline.net
213.74.53.177	PTR	host-213-74-53-177.superonline.net
213.74.53.203	PTR	host-213-74-53-203.superonline.net
213.74.54.10	A+PTR	mail.nurunistanbul.com
213.74.54.10	PTR	mail.publicisbold.com
213.74.54.10	PTR	mail.publicishealthcareturkey.com
213.74.54.18	PTR	mail.starcom.com.tr
213.74.54.18	A	mail.smgturkey.com
213.74.54.35	A	ns3.kibarholding.com
213.74.54.65	PTR	host-213-74-54-65.superonline.net
213.74.54.65	A	ankarakart.com.tr
213.74.54.65	A	www.ankarakart.com.tr
213.74.54.138	PTR	host-213-74-54-138.superonline.net
213.74.54.148	PTR	host-213-74-54-148.superonline.net
213.74.54.170	PTR	host-213-74-54-170.superonline.net
213.74.54.170	A	formulunadi.com
213.74.54.181	PTR	host-213-74-54-181.superonline.net
213.74.54.181	A	technovatan.com.tr
213.74.54.198	PTR	host-213-74-54-198.superonline.net
213.74.54.198	A	mail.krnmimarlik.com
213.74.54.235	PTR	mail.dundasunlu.com
213.74.54.235	A	dundasunlupartners.com
213.74.54.235	A	*.duportfoy.com
213.74.55.42	PTR	host-213-74-55-42.superonline.net
213.74.55.51	A+PTR	mail.entegreharc.com
213.74.55.51	A+PTR	mail.entegreharc.com.tr
213.74.55.53	A	www.entegreharc.com
213.74.55.53	A	entegreharc.com
213.74.55.112	PTR	host-213-74-55-112.superonline.net
213.74.55.174	PTR	alkoraluminyum.com.tr
213.74.55.174	A	mail.dkmekanik.com
213.74.55.174	A	mail.alkoraluminyum.com.tr
213.74.55.178	PTR	mail.cotecna.com.tr
213.74.55.198	PTR	alkoraluminyum.com.tr
213.74.55.212	PTR	mail.gun-ip.com
213.74.55.212	PTR	mail.dahaiyiyargi.org
213.74.55.212	PTR	mail2.gun.av.tr
213.74.55.214	PTR	host-213-74-55-214.superonline.net
213.74.55.234	A	mail.c5electronics.com
213.74.55.250	PTR	host-213-74-55-250.superonline.net