Robtex

Up: 213.16.20.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 213.16.20.0/25
Down right: 213.16.20.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.16.20.3	A+PTR	ns1-mq.mediaserv.net
213.16.20.3	A	fado.mediaserv.net
213.16.20.11	PTR	mail.mediaserv.net
213.16.20.12	PTR	webmail.mediaserv.net
213.16.20.13	A+PTR	smtp1-mq.mediaserv.net
213.16.20.15	A+PTR	mx1-mq.mediaserv.net
213.16.20.15	A	mail.mediaserv.net
213.16.20.15	A	mxav2-mq.mediaserv.net
213.16.20.16	PTR	mxav-vip-mq.mediaserv.net
213.16.20.16	A	mxav.mediaserv.net
213.16.20.17	PTR	mxav1-mq.mediaserv.net
213.16.20.18	PTR	mxav2-mq.mediaserv.net
213.16.20.21	A+PTR	web1-mq.mediaserv.net
213.16.20.21	A	payment-cb.mediaserv.net
213.16.20.26	A	smh2-mq.mediaserv.net
213.16.20.27	PTR	paymentssl.mediaserv.net
213.16.20.28	PTR	hotspot.antilladoo.com
213.16.20.29	A+PTR	smh1-mq.mediaserv.net
213.16.20.39	A	pop3s.mediaserv.net
213.16.20.41	A+PTR	smtps.mediaserv.net
213.16.20.43	PTR	webmail.mediaserv.net
213.16.20.43	A	web7-mq.mediaserv.net
213.16.20.51	A+PTR	mq-1pm-dnscache01.mediaserv.net
213.16.20.65	A	hd-test.mediaserv.net
213.16.20.66	A+PTR	rmb-mq.mediaserv.net
213.16.20.67	A	cmb-mq.mediaserv.net
213.16.20.68	A+PTR	sql1-mq.mediaserv.net
213.16.20.69	A	filer3-mq.mediaserv.net
213.16.20.72	PTR	virt4-mq.mediaserv.net
213.16.20.81	A+PTR	sql2-mq.mediaserv.net
213.16.20.84	A	bill2-mq.mediaserv.net
213.16.20.85	A+PTR	bill3-mq.mediaserv.net
213.16.20.122	PTR	intranet.mediaserv.net
213.16.20.122	A	intranet-vip.mediaserv.net
213.16.20.123	A	filer1-mq.mediaserv.net
213.16.20.140	A+PTR	smb1-mq.mediaserv.net
213.16.20.142	A+PTR	apmon-mq.mediaserv.net
213.16.20.144	A+PTR	monitor1-mq.mediaserv.net
213.16.20.144	A	ems-mq.mediaserv.net
213.16.20.144	A	ems1-mq.mediaserv.net
213.16.20.145	A	monitor2-mq.mediaserv.net
213.16.20.146	A	virt1-mq.mediaserv.net
213.16.20.188	PTR	fe1-2-2.slb2-mq.mediaserv.net