Robtex

Up: 212.103.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 212.103.224.0/20
Down right: 212.103.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.103.224.1	A	web.core.firstnet.net.uk
212.103.224.1	A	homer.firstnet.net.uk
212.103.224.1	A	tru-est.co.uk
212.103.224.31	PTR	mail.core.firstnet.net.uk
212.103.224.41	A	relay.firstnet.co.uk
212.103.224.41	A	relay.firstnet.net.uk
212.103.224.88	A	inbound1.firstnet.net.uk
212.103.224.89	A	smtprelay3.firstnet.net.uk
212.103.224.245	A	onslaught.firstnet.net.uk
212.103.225.21	A	primx.lainstonhousehotel.com
212.103.225.39	A	network-225-39.firstnet.net.uk
212.103.225.44	A	network-225-44.firstnet.net.uk
212.103.225.47	A	network-225-47.firstnet.net.uk
212.103.225.99	A+PTR	network-225-99.firstnet.net.uk
212.103.225.172	A	network-225-172.firstnet.net.uk
212.103.226.221	PTR	v20.ld-ar11.cix.gxn.net
212.103.228.128	PTR	dial-228-128.as15758.net
212.103.228.162	PTR	dial-228-162.as15758.net
212.103.230.33	PTR	visp-230-33.as15758.net
212.103.233.1	A	leeds01-fw.internal.pipex.net
212.103.234.130	PTR	adsl-234-130.as15758.net
212.103.234.181	A	mail.meningitis.org
212.103.235.130	PTR	adsl-235-130.as15758.net
212.103.236.61	A	mailhost.dawsons.co.uk
212.103.237.146	PTR	mailgate.ibr.co.uk
212.103.239.61	A	mail.response-uk.com
212.103.242.10	A	www.bdirect.org
212.103.242.10	A	bdirect.org
212.103.243.14	A	212.103.243.14.firstnet.net.uk
212.103.243.85	A	212.103.243.85.firstnet.net.uk
212.103.243.107	A	icscotland.com
212.103.243.107	A	212.103.243.107.firstnet.net.uk
212.103.243.129	PTR	www.mirror.co.uk
212.103.243.225	PTR	212.103.243.225.firstnet.net.uk
212.103.243.225	A	ns2.netklix.net
212.103.243.251	A	212.103.243.251.firstnet.net.uk
212.103.243.255	A	212.103.243.255.firstnet.net.uk
212.103.244.3	A	ns3.uklaw.net
212.103.244.4	A+PTR	mail.uklaw.net
212.103.244.4	A	mx1.viewpointconnections.com
212.103.244.4	A	mail.dixondraperies.com
212.103.244.79	A	mail.walmar.com
212.103.244.82	A	kt.uklaw.net
212.103.244.253	A	www.nkt.net
212.103.245.4	PTR	adsl245-4.as15758.net
212.103.245.131	PTR	adsl245-131.as15758.net
212.103.247.32	PTR	cargocomiis1.cargocomgmbh.vmiroot.mps
212.103.248.2	A	*.lpms.com
212.103.248.2	A	mail.lpms.com
212.103.248.2	A	lpms.com
212.103.248.5	A	loneguardian.co.uk
212.103.248.72	A	axisvis-fw.cust.pipex.net
212.103.248.77	A	coventry01-fw.cust.pipex.net
212.103.248.135	A	mail.angelamortimer.com
212.103.249.45	A	mailhost.whitegrove.co.uk
212.103.250.133	A	stratahomes.co.uk
212.103.250.133	A	groupstrata.com
212.103.250.181	A	mail.wonderhear.com