Robtex

Up: 42.0.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 42.0.0.0/18
Down right: 42.0.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
42.0.0.0	A	ook6.com
42.0.0.42	A	resolver-canary.endpoint.com
42.0.4.140	PTR	42.0.4-140.robi.com.bd
42.0.4.140	A	r1.sn-5pguxacq-q5je.gvt1.com
42.0.4.140	A	r1.sn-5pguxacq-q5je.a1.googlevideo.com
42.0.4.141	PTR	42.0.4-141.robi.com.bd
42.0.6.8	PTR	42.0.6-8.robi.com.bd
42.0.6.12	PTR	42.0.6-12.robi.com.bd
42.0.6.12	A	r1.sn-gvcp5mp5u5-q5jl.googlevideo.com
42.0.6.13	PTR	42.0.6-13.robi.com.bd
42.0.6.13	A	r2.sn-gvcp5mp5u5-q5jl.googlevideo.com
42.0.6.14	A	r3.sn-gvcp5mp5u5-q5jl.googlevideo.com
42.0.6.15	A	r4.sn-gvcp5mp5u5-q5jl.googlevideo.com
42.0.6.131	PTR	42.0.6-131.robi.com.bd
42.0.6.131	A	www.robitvplus.com
42.0.6.131	A	www.airteltvplus.com
42.0.6.235	PTR	gprsdk204.robi.com.bd
42.0.6.239	PTR	gprsdk208.robi.com.bd
42.0.6.243	PTR	gprsdk212.robi.com.bd
42.0.7.24	PTR	42.0.7-24.robi.com.bd
42.0.7.30	PTR	42.0.7-30.robi.com.bd
42.0.7.129	PTR	42.0.7-129.robi.com.bd
42.0.7.166	A	dhaka3st.robi.com.bd
42.0.28.20	A+PTR	mx.nocser.net
42.0.28.30	A	hyssb.com
42.0.28.30	A	chs.com.my
42.0.28.30	A	metabond.com.my
42.0.28.70	A	hyssb.com
42.0.28.70	A	metabond.com.my
42.0.28.111	A	mail.the-interior-designs.com
42.0.28.131	A	multifab.net
42.0.28.133	A	sofamalaysia.com.my
42.0.28.134	A	the-interior-designs.com
42.0.28.134	A	mail.the-interior-designs.com
42.0.28.135	PTR	ext.artistenextra.com
42.0.29.37	PTR	tru2.icm.com
42.0.29.37	A	academicworldclass.com
42.0.29.37	A	mail.attendforeventpoints.com
42.0.29.130	A	planningmajor.com
42.0.29.130	A	explainingnewprojects.com
42.0.29.150	A+PTR	beez.com.my
42.0.29.162	A+PTR	investmentspage.net
42.0.30.34	PTR	leafnear.com
42.0.30.34	A	sexyfew.com
42.0.30.34	A	ns1.sexyfew.com
42.0.30.42	A	goneripe.com
42.0.30.130	A	bufflame.com
42.0.30.130	A	preditoric.com
42.0.30.131	A	ns1.bufflame.com
42.0.30.132	A	ns2.bufflame.com
42.0.30.135	PTR	featzany.org
42.0.31.36	A	presiden.pas.org.my
42.0.31.37	PTR	qalaah.unitit.net
42.0.31.37	A	mail.epasti.net
42.0.31.37	A	ppp.parti-pas.org
42.0.31.39	PTR	ikram.unitit.net
42.0.31.40	PTR	tkoweb.unitit.net.31.0.42.in-addr.arpa
42.0.31.45	A	mail.epasti.net
42.0.31.130	PTR	wholobile.com
42.0.31.130	A	six-witch.com
42.0.31.138	PTR	awesocapital.com
42.0.31.138	A	ns1.technoclick.pw
42.0.31.138	A	ns2.ascentmaxi.com
42.0.31.139	PTR	tent.burnsnurse.com
42.0.31.142	PTR	suing.burnsnurse.com