Robtex

Up: 192.139.20.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 192.139.20.0/24
Down right: 192.139.21.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.139.20.1	A	ftp.waters.com
192.139.20.4	A	ecads.waters.com
192.139.20.14	A	apgqa.com
192.139.20.21	A	watersbenefitsnow.com
192.139.20.22	A	corptraveler.waters.com
192.139.20.60	A	bm1mail.waters.com
192.139.20.79	A	origin-legacy-stage.waters.com
192.139.20.105	A	ariba.waters.com
192.139.20.110	A	www.waters.info
192.139.20.110	A	waters.info
192.139.20.110	A	waters.com
192.139.20.150	A	outside.waters.com
192.139.20.194	A	www.eraqc.com
192.139.20.194	A	www.apgqa.com
192.139.20.194	A	eraqc.com
192.139.21.2	A+PTR	usrserver.drao.nrc.ca
192.139.21.9	A+PTR	rigel.drao.nrc.ca
192.139.21.27	A+PTR	xremoteh.drao.nrc.ca
192.139.21.30	A+PTR	lotcam.drao.nrc.ca
192.139.21.35	PTR	fmib1.drao.nrc.ca
192.139.21.49	PTR	fumin.drao.nrc.ca
192.139.21.53	A+PTR	cmib26.drao.nrc.ca
192.139.21.65	A	cygnus.drao.nrc.ca
192.139.21.66	A+PTR	virgo.drao.nrc.ca
192.139.21.74	A+PTR	cmib40.drao.nrc.ca
192.139.21.81	A+PTR	maxwell.drao.nrc.ca
192.139.21.81	A	drao.nrc.ca
192.139.21.85	A+PTR	cmib25.drao.nrc.ca
192.139.21.90	A+PTR	atic1.drao.nrc.ca
192.139.21.96	A+PTR	cmib19.drao.nrc.ca
192.139.21.116	PTR	lynx.drao.nrc.ca
192.139.21.116	A	drao-ofr.hia-iha.nrc-cnrc.gc.ca
192.139.21.143	A+PTR	mekbuda.drao.nrc.ca
192.139.21.147	A+PTR	barolo.drao.nrc.ca
192.139.21.152	A+PTR	cmib2.drao.nrc.ca
192.139.21.174	A+PTR	cmib22.drao.nrc.ca
192.139.21.222	A+PTR	conference.drao.nrc.ca
192.139.21.223	A+PTR	hiap-223.drao.nrc.ca
192.139.21.236	A+PTR	cmib37.drao.nrc.ca
192.139.21.252	A+PTR	draofw.drao.nrc.ca