Robtex

Up: 156.154.100.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 156.154.101.0/25
Down right: 156.154.101.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
156.154.101.1	A+PTR	b.gtld.travel
156.154.101.3	PTR	nsb.nic.uk
156.154.101.3	A	dnsb.nic.tushu
156.154.101.3	A	dnsb.nic.miami
156.154.101.4	A+PTR	l.ca-servers.ca
156.154.101.8	A	udns2.salesforce.com
156.154.101.11	A+PTR	b.dns.lu
156.154.101.12	A+PTR	njet.norid.no
156.154.101.13	PTR	ns1.nus.nic.nu
156.154.101.14	PTR	ns6.dns.net.nz
156.154.101.17	PTR	ns1.nic.tt
156.154.101.18	PTR	udns2.ausregistry.net.au
156.154.101.20	A+PTR	ns6.registry.in
156.154.101.20	A	ns6.neustar.in
156.154.101.22	A	ns2.registry-servers.4u.com
156.154.101.23	A+PTR	ns2.isc.ultradns.net
156.154.101.25	A+PTR	ns2.cctld.co
156.154.101.26	PTR	g.fi
156.154.101.27	A	b.nic.bank
156.154.101.28	PTR	b.dns-server.iq
156.154.101.30	A+PTR	state02.ultradns.net
156.154.101.224	A+PTR	rdsdns2.ultradns.net