Robtex

Up: 213.166.4.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 213.166.5.0/25
Down right: 213.166.5.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.166.5.2	PTR	th-e-lon-lan-1-r6.magrathea.net.uk
213.166.5.9	A	apc.magrathea.net
213.166.5.10	A+PTR	mssdb-master.magrathea.net
213.166.5.10	A	ethsw.magrathea.net
213.166.5.11	A+PTR	mssdb-slave.magrathea.net
213.166.5.15	A	mssdb1.magrathea-telecom.co.uk
213.166.5.15	A	mssdb2.magrathea-telecom.co.uk
213.166.5.65	PTR	idoru.world.co.uk
213.166.5.75	A	www.e164.org.uk
213.166.5.81	PTR	www.ucp-tours.co.uk
213.166.5.82	A	secure.world.co.uk
213.166.5.91	PTR	www.call-safe.com
213.166.5.95	A+PTR	www.uknumber.co.uk
213.166.5.108	PTR	www.magrathea-telecom.co.uk
213.166.5.111	A+PTR	apc2.magrathea.net
213.166.5.112	A+PTR	apc3.magrathea.net
213.166.5.113	PTR	lon-apc-04.magrathea.net
213.166.5.113	A	apc4.magrathea.net
213.166.5.114	A+PTR	apc5.magrathea.net
213.166.5.126	A	crete.magrathea.net
213.166.5.136	PTR	lon-syslog-02.magrathea.net
213.166.5.136	A	gwh323.magrathea.net
213.166.5.138	A	gk-two.magrathea.net
213.166.5.147	PTR	sil1.magrathea.net
213.166.5.148	PTR	sil2.magrathea.net
213.166.5.150	PTR	srl2.magrathea.net
213.166.5.179	A	lon-callweaver.magrathea.net
213.166.5.181	PTR	lon-neptune-6.magrathea.net
213.166.5.181	A	mail.partsforlandrovers.co.uk
213.166.5.189	PTR	mssdb-master.magrathea.net
213.166.5.200	A+PTR	blackice.world.co.uk
213.166.5.201	PTR	games.world.co.uk
213.166.5.225	A+PTR	ns1.krytensystems.com
213.166.5.225	A	mail.krytensystems.com
213.166.5.225	A	www.krytensystems.com
213.166.5.226	A+PTR	ns2.krytensystems.com
213.166.5.228	PTR	lon-at-02.magrathea.net.uk
213.166.5.228	A	bongoplayer.co.uk
213.166.5.228	A	mail.bongoplayer.co.uk
213.166.5.230	PTR	www.professionalwindowsuk.co.uk
213.166.5.235	PTR	www.tradsol.com
213.166.5.237	PTR	www.mptiles.co.uk
213.166.5.237	A	whfis.co.uk
213.166.5.237	A	www.whfis.co.uk