Robtex

Up: 216.40.46.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.40.47.0/25
Down right: 216.40.47.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.40.47.0	PTR	lb13b.c.tucows.com
216.40.47.0	A	iamtoodumbtosetupdns.0.47.40.216.hitfarm.com
216.40.47.1	A+PTR	gw-47.tucows.com
216.40.47.1	A	gsivalet.com
216.40.47.7	PTR	bfra-47.tucows.com
216.40.47.8	PTR	bfrb-47.tucows.com
216.40.47.9	PTR	bfr-orig-47.tucows.com
216.40.47.11	A+PTR	ns-db.opensrs.net
216.40.47.12	PTR	pdns2.tucows.com
216.40.47.13	A+PTR	dns1-h.tucows.com
216.40.47.14	A+PTR	dns2-h.tucows.com
216.40.47.15	A+PTR	old-ns1.mdnsservice.com
216.40.47.16	A+PTR	old-ns2.mdnsservice.com
216.40.47.16	A	dns2.nextek.net
216.40.47.17	PTR	redirect.managednsservice.com
216.40.47.17	A	burkeconstructionsvc.com
216.40.47.17	A	catherinetimm.com
216.40.47.18	PTR	ns1.mdnsservice.com
216.40.47.18	A	systemdns.it
216.40.47.18	A	dns1.onepixeloff.com
216.40.47.19	PTR	lb13b.c.tucows.com
216.40.47.19	A	ns2.puresource.com
216.40.47.20	A+PTR	ns1.tucows.com
216.40.47.20	A	ns1.itsyourdomain.com
216.40.47.20	A	ns1.he.tucows.com
216.40.47.21	A+PTR	tc-dnscorp1.tucows.com
216.40.47.22	A+PTR	tc-dnscorp2.tucows.com
216.40.47.23	A+PTR	tc-dnscorp3.tucows.com
216.40.47.24	A+PTR	tc-dnscorp4.tucows.com
216.40.47.25	A+PTR	tc-dnscorp5.tucows.com
216.40.47.26	PTR	ns1.hover.com
216.40.47.26	A	ns.srecoop.org
216.40.47.26	A	ns1.dustind.ca
216.40.47.27	PTR	ns1a.hover.com
216.40.47.27	A	phoscape.com
216.40.47.30	PTR	ns1.kayo.io
216.40.47.41	A+PTR	tc-dnshover1.tucows.com
216.40.47.42	A+PTR	tc-dnshover2.tucows.com
216.40.47.43	A+PTR	tc-dnshover3.tucows.com
216.40.47.44	A+PTR	tc-dnshover4.tucows.com
216.40.47.45	A+PTR	tc-dnshover5.tucows.com
216.40.47.51	A+PTR	tc-dns1.tucows.com
216.40.47.52	A+PTR	tc-dns2.tucows.com
216.40.47.53	A+PTR	tc-dns3.tucows.com
216.40.47.54	A+PTR	tc-dns4.tucows.com
216.40.47.55	A+PTR	tc-dns5.tucows.com
216.40.47.60	PTR	ns1.hughesnetwebservices.com
216.40.47.61	A+PTR	tc-dnshn1.tucows.com
216.40.47.62	A+PTR	tc-dnshn2.tucows.com
216.40.47.63	A+PTR	tc-dnshn3.tucows.com
216.40.47.64	A+PTR	tc-dnshn4.tucows.com
216.40.47.65	A+PTR	tc-dnshn5.tucows.com
216.40.47.70	PTR	ns1.domaindirect.com
216.40.47.71	A+PTR	tc-dnsdd1.tucows.com
216.40.47.72	A+PTR	tc-dnsdd2.tucows.com
216.40.47.73	A+PTR	tc-dnsdd3.tucows.com
216.40.47.74	A+PTR	tc-dnsdd4.tucows.com
216.40.47.75	PTR	tc-dnsdd6.tucows.com
216.40.47.75	A	tc-dnsdd5.tucows.com
216.40.47.80	A+PTR	ns1.shopco.com
216.40.47.81	A+PTR	tc-dnssf1.tucows.com
216.40.47.82	A+PTR	tc-dnssf2.tucows.com
216.40.47.83	A+PTR	tc-dnssf3.tucows.com
216.40.47.84	A+PTR	tc-dnssf4.tucows.com
216.40.47.85	A+PTR	tc-dnssf5.tucows.com
216.40.47.90	A+PTR	ns1.systemdns.com
216.40.47.90	A	park1.izoox.com
216.40.47.90	A	ns1.authenticweb.com
216.40.47.91	A+PTR	tc-dnsosrs1.tucows.com
216.40.47.92	A+PTR	tc-dnsosrs2.tucows.com
216.40.47.93	A+PTR	tc-dnsosrs3.tucows.com
216.40.47.94	A+PTR	tc-dnsosrs4.tucows.com
216.40.47.95	A+PTR	tc-dnsosrs5.tucows.com
216.40.47.100	A+PTR	ns2.ascio.com
216.40.47.100	A	ns2.ipmirror.com
216.40.47.101	A+PTR	ns4.ascio.com
216.40.47.101	A	ns4.sunudns.com
216.40.47.170	A	leosworld.info
216.40.47.171	A	jemcocontracting.com