Robtex

Up: 203.217.168.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.217.168.0/25
Down right: 203.217.168.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.217.168.18	A+PTR	relay.sinet.com.kh
203.217.168.18	A	mx3.sinet.com.kh
203.217.168.24	A+PTR	mx2.sinet.com.kh
203.217.168.24	A	www.indobestgroup.com
203.217.168.24	A	corp.sinet.com.kh
203.217.168.27	A+PTR	ns1.sinet.com.kh
203.217.168.28	A+PTR	nms.sinet.com.kh
203.217.168.28	A+PTR	ntp.sinet.com.kh
203.217.168.29	PTR	29.server.sinet.com.kh
203.217.168.34	A+PTR	mx1.sinet.com.kh
203.217.168.34	A	mail.sinet.com.kh
203.217.168.34	A	webmail.sinet.com.kh
203.217.168.36	A+PTR	ns2.sinet.com.kh
203.217.168.41	PTR	ns3.sinet.com.kh
203.217.168.41	A	www.ais.edu.kh
203.217.168.41	A	www.gl-e.com
203.217.168.100	A	mobileaccelerate.com
203.217.168.100	A	mail.crusoeisland.asia
203.217.168.100	A	www.trainpress.com
203.217.168.101	A	mail.hostasean.com
203.217.168.101	A	hostasean.com
203.217.168.101	A	computerscambodia.com
203.217.168.109	A	mail.2tensourcing.com
203.217.168.109	A	mx01.rapidit.asia
203.217.168.114	PTR	mail.maiomall.com
203.217.168.114	A	www.maiomall.com
203.217.168.162	PTR	162.server.sinet.com.kh
203.217.168.162	A	speedtest.sinet.com.kh
203.217.168.165	PTR	165.server.sinet.com.kh
203.217.168.165	A	ticket.sinet.com.kh
203.217.168.168	PTR	168.server.sinet.com.kh
203.217.168.168	A	mailcorp.sinet.com.kh
203.217.168.177	A	sigroups.com
203.217.168.177	A	sinet.com.kh
203.217.168.177	A	indobestgroup.com
203.217.168.187	PTR	187.server.sinet.com.kh
203.217.168.187	A	bdccam.com
203.217.168.196	PTR	cache.google.com
203.217.168.196	A	hichengdu.com
203.217.168.196	A	networkstone.com