Robtex

Up: 198.21.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 198.21.20.0/23
Down right: 198.21.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.21.20.4	PTR	rbavdns22.nwd.roche.net
198.21.20.13	A	mg-int1.roche.com
198.21.20.33	A+PTR	mg-enc1.encrypt-roche.com
198.21.20.34	A	mg-enc2.encrypt-roche.com
198.21.20.118	PTR	rmulscdds01.rmu.roche.com
198.21.20.118	A	rbavdd-inetcache01.bas.roche.com
198.21.20.134	PTR	rbas738e.nwd.roche.com
198.21.20.134	A	shield-elu.gtm.roche.net
198.21.20.134	A	rba.range.roche.net
198.21.20.138	A+PTR	rbams473.bas.roche.com
198.21.20.145	A+PTR	rbamscmdmze01.bas.roche.com
198.21.20.157	A+PTR	bcp.bas.roche.com
198.21.20.158	A	shield-elu.gtm.roche.net
198.21.20.158	A	shield-elu.range.roche.net
198.21.20.174	A+PTR	rmu.rosa.roche.net
198.21.20.180	A+PTR	ppebas.range.roche.net
198.21.20.184	A+PTR	rmumtaext01.roche.com
198.21.20.185	A+PTR	rmumtaext02.roche.com
198.21.20.189	A+PTR	rkamtaext01.roche.com
198.21.20.190	A+PTR	rkamtaext02.roche.com
198.21.21.135	A+PTR	sportclub.roche.com
198.21.21.135	PTR	presentations.brand.roche.com
198.21.21.135	A+PTR	corporate-design.roche.com
198.21.21.136	A+PTR	influenzamediainfo.roche.com
198.21.21.136	A+PTR	talking-tamiflu.roche.com
198.21.21.136	PTR	tamiflumediainfo.roche.com
198.21.21.137	PTR	diagnostics.roche.com
198.21.21.137	PTR	digrimessa.roche.com
198.21.21.140	A	b2bqa-bas.roche.com
198.21.21.141	A+PTR	b2bua-bas.roche.com
198.21.21.142	PTR	b2b-bas.roche.com
198.21.21.142	A	dia.e-roche.com
198.21.21.142	A	b2b.roche.com
198.21.21.144	A	ccgpre-bas.roche.com
198.21.21.145	A	ccgtest-bas.roche.com
198.21.21.146	A+PTR	ccgwac-bas.roche.com
198.21.21.146	A	gmail.roche-encrypt.com
198.21.21.148	A+PTR	sncsbx.roche.com
198.21.21.158	A+PTR	a93pwnvz-range.roche.net
198.21.21.158	A+PTR	range-new.roche.net
198.21.21.158	A	range.roche.net
198.21.21.163	A	mg-int0.roche.com
198.21.21.169	A+PTR	new-ace-virtual-server-219.bas.roche.com
198.21.21.171	PTR	sip.contractors.roche.com
198.21.21.171	A+PTR	extaccess-emea.roche.com
198.21.21.173	A	extwebconf-emea.roche.com
198.21.21.204	A	rbavx011.bas.roche.com
198.21.22.2	PTR	ridr1i-gi0-2-2.nwd.roche.com