Robtex

Up: 5.11.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 5.11.128.0/18
Down right: 5.11.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.11.138.253	A+PTR	mail3.fibaretail.com.tr
5.11.138.253	A	www.toastwaffle.com
5.11.138.253	A	mail3.marka.com.tr
5.11.148.150	A	nikkentooling.com
5.11.153.2	A+PTR	mail2.bahcesehirgaz.com.tr
5.11.153.124	A+PTR	mail2.vatan.com.tr
5.11.157.108	A	online-activation--commbank.com
5.11.157.108	A	online-activation--westpac.com
5.11.158.19	A	online-verification--nab.com
5.11.158.19	A	nab-internet-bank-assistant.com
5.11.158.19	A	support-security-manager-commbank.com
5.11.163.23	A	smtp3.besiktasshipyard.com
5.11.163.129	A	ns2.ozyurtas.com.tr
5.11.163.129	A	ns2.ozyurt.com
5.11.165.249	A	mx01.cukurovayukleyici.com
5.11.167.110	A	mailbackup.sinanmislar.com
5.11.170.132	A+PTR	smtp3.hartek.com.tr
5.11.172.84	A	activation-security-department-commbank.com
5.11.172.84	A	www.activation-security-department-commbank.com
5.11.172.93	A	manager-security-activation-westpac.com
5.11.172.93	A	security-manager-activation-westpac.com
5.11.179.236	A	mx2.yavuzmotors.com
5.11.180.241	A	ns2.tarimburdur.gov.tr
5.11.219.86	PTR	mail.magnagumruk.com
5.11.219.87	PTR	mail.magnagumruk.com
5.11.219.88	PTR	mail.magnagumruk.com
5.11.219.249	A	account-activation-anz.com
5.11.223.83	A+PTR	mail.basarangemi.com
5.11.226.227	A+PTR	wan02.cozeriz.biz
5.11.226.227	A	mail.cozeriz.biz
5.11.236.137	A	mx2.sontrade.com
5.11.236.137	A	mx2.sonmezcimento.com.tr
5.11.236.218	A	optimalgesserver.myqnapcloud.com
5.11.237.253	A	ae.duckdns.org
5.11.237.253	A	www.ae.duckdns.org
5.11.251.5	A	gbport.com
5.11.253.181	A	beyaxbayi.com