Robtex

Up: 37.99.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 37.99.160.0/20
Down right: 37.99.176.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
37.99.161.77	PTR	37.99.161-77.static.go.com.sa
37.99.161.126	PTR	37.99.161-126.static.go.com.sa
37.99.161.126	A	*.ed.sa
37.99.162.66	A	mail.perfectpurity.com
37.99.162.140	PTR	37-99-162-140.static.go.com.sa
37.99.162.140	A	mail.orascomsa.com
37.99.162.140	A	orascomsa.com
37.99.162.141	A	orascomsa.com
37.99.162.141	A	mail2.orascomsa.com
37.99.163.42	A	ns2.gmcpost.net
37.99.163.164	A+PTR	mail.smarteducation.ae
37.99.163.164	PTR	mail.futureducation.org
37.99.163.164	A+PTR	mail.futuregrp.org
37.99.164.3	PTR	37.99.164-3.static.go.com.sa
37.99.164.3	A	hrsalco.dyndns.org
37.99.164.124	PTR	37.99.164-124.static.go.com.sa
37.99.165.22	A	mail2.abbarcoldstores.com
37.99.165.22	A	autodiscover.abbarcoldstores.com
37.99.165.22	A	mail.abbartrading.com
37.99.165.110	A	mail.tfpl.com.sa
37.99.166.125	PTR	mail.baytalebaa.com
37.99.166.125	A	mail.elegant-palace.com
37.99.166.125	A	mail.ebaahouse.com
37.99.168.3	PTR	mail.nomac.com
37.99.169.36	PTR	37.99.169-36.static.go.com.sa
37.99.169.36	A	mobilksa.com
37.99.169.37	A+PTR	mail1.apsco-ksa.com
37.99.169.54	PTR	37.99.169-54.static.go.com.sa
37.99.169.54	A	qasswa1.dyndns.biz
37.99.169.99	PTR	37.99.169-99.static.go.com.sa
37.99.169.99	A	email.jec.sa
37.99.169.109	A	visionem.net
37.99.169.110	A	mail.visionem.net
37.99.172.6	A	www.saptco.com.sa
37.99.172.9	PTR	mail2.saptco.com.sa
37.99.172.9	A	mail2.seitco.com.sa
37.99.172.17	PTR	37-99-172-17.static.go.com.sa
37.99.172.17	A	webmail.saptco.com.sa
37.99.172.17	A	autodiscover.saptco.com.sa
37.99.172.50	A	mail.alahramtravel.com
37.99.173.16	A	ns2.sp.sa
37.99.173.61	A	spgtm1.sp.com.sa