Robtex

Up: 158.132.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 158.132.16.0/22
Down right: 158.132.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
158.132.18.1	A+PTR	hkpu03.polyu.edu.hk
158.132.18.9	A	hkpuweb.polyu.edu.hk
158.132.18.13	A	hkpa13.polyu.edu.hk
158.132.18.14	A	hkpa14.polyu.edu.hk
158.132.18.18	A	www.sd.polyu.edu.hk
158.132.18.22	A	hkpu10.polyu.edu.hk
158.132.18.58	A	hkpu57.polyu.edu.hk
158.132.18.60	A	hkpu21.polyu.edu.hk
158.132.18.63	A	radius2.polyu.edu.hk
158.132.18.68	A	gasuat.polyu.edu.hk
158.132.18.69	PTR	hkpu60.polyu.edu.hk
158.132.18.69	A	www.hkaf.edu.hk
158.132.18.69	A	www.isqols2018.hk
158.132.18.72	A	www28.polyu.edu.hk
158.132.18.74	A+PTR	hkpu13.polyu.edu.hk
158.132.18.81	A	hkpu18.polyu.edu.hk
158.132.18.89	A+PTR	www.polyu.edu.hk
158.132.18.89	A	qr.polyu.edu.hk
158.132.18.89	A	www.ise.polyu.edu.hk
158.132.18.102	A	hkpu16.polyu.edu.hk
158.132.18.115	PTR	hkpx484.polyu.edu.hk
158.132.18.115	A	hkpu23.polyu.edu.hk
158.132.18.128	A+PTR	sam.polyu.edu.hk
158.132.18.135	A	my.polyu.edu.hk
158.132.18.152	PTR	ittnws.polyu.edu.hk
158.132.18.172	A	hkpu38.polyu.edu.hk
158.132.18.174	A	hkpuwbt.polyu.edu.hk
158.132.18.175	A	hkpu44.polyu.edu.hk
158.132.18.211	A+PTR	inet.polyu.edu.hk
158.132.18.220	A	internet.polyu.edu.hk
158.132.18.221	A+PTR	inet.polyu.edu.hk
158.132.18.240	A+PTR	a.polyu.edu.hk
158.132.18.245	A+PTR	puw2kdp1.polyu.edu.hk
158.132.19.6	A	gwip.polyu.edu.hk
158.132.19.7	PTR	webct2.polyu.edu.hk
158.132.19.8	A	webct3.polyu.edu.hk
158.132.19.14	A	hkpu52.polyu.edu.hk
158.132.19.20	A+PTR	my.polyu.edu.hk
158.132.19.26	A	hkpx32.polyu.edu.hk
158.132.19.27	A	hkpx34.polyu.edu.hk
158.132.19.28	A	myweb.polyu.edu.hk
158.132.19.29	A	mystore.polyu.edu.hk
158.132.19.35	A	hkpu08.polyu.edu.hk
158.132.19.114	A+PTR	stdtime.polyu.edu.hk
158.132.19.114	A	news.polyu.edu.hk
158.132.19.118	A	hkpussh.polyu.edu.hk
158.132.19.127	A+PTR	leap.polyu.edu.hk
158.132.19.137	A	hkpu28.polyu.edu.hk
158.132.19.138	A	hkpu30.polyu.edu.hk
158.132.19.144	A	hkpx24.polyu.edu.hk
158.132.19.145	A	hkpx22.polyu.edu.hk
158.132.19.147	A	www.ise.polyu.edu.hk
158.132.19.147	A	eduroam.hk
158.132.19.169	A	hkpu56.polyu.edu.hk
158.132.19.170	A	hkpx152.polyu.edu.hk
158.132.19.176	A	hkpumvs.polyu.edu.hk
158.132.19.187	A	hkpx06.polyu.edu.hk
158.132.19.195	A+PTR	gwg1.polyu.edu.hk
158.132.19.196	A	gwg3.polyu.edu.hk
158.132.19.197	A+PTR	gwg2.polyu.edu.hk
158.132.19.198	A	gwg4.polyu.edu.hk
158.132.19.245	A	gwqr.polyu.edu.hk
158.132.20.173	PTR	pc20-173.comp.polyu.edu.hk
158.132.20.173	A	dovecot3.comp.polyu.edu.hk
158.132.20.201	A	csns312.comp.polyu.edu.hk
158.132.20.205	PTR	www5.comp.polyu.edu.hk
158.132.21.42	A	www.apsipa2015.org
158.132.21.77	A	www.apsipa.org
158.132.21.77	A	apsipa.com
158.132.21.77	A	apsipa.org
158.132.21.78	A	icspcc2012.org
158.132.21.81	A	icip2010.org
158.132.21.234	A	cleopr2018.org
158.132.21.234	A	oecc2009.org
158.132.22.87	A+PTR	wta_server.polyu.edu.hk
158.132.22.88	A+PTR	ha2.polyu.edu.hk
158.132.22.90	A+PTR	mpc.polyu.edu.hk
158.132.22.111	PTR	dingo.polyu.edu.hk
158.132.22.112	A+PTR	itsu03.its.polyu.edu.hk
158.132.22.162	A+PTR	mail.its.polyu.edu.hk
158.132.22.182	A	cyberonetechnology.com
158.132.22.182	A	icoin88.com
158.132.22.207	A+PTR	nanwftp1.its.polyu.edu.hk
158.132.22.224	A+PTR	gw6.its.polyu.edu.hk
158.132.22.231	PTR	webctarc.polyu.edu.hk
158.132.22.251	A+PTR	ithm02.its.polyu.edu.hk
158.132.23.127	A+PTR	hknua.org.hk