Robtex

Up: 198.84.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 198.84.0.0/20
Down right: 198.84.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.84.0.0	PTR	ns1.rookdns.com
198.84.1.0	PTR	ns1.rookdns.com
198.84.3.67	PTR	ns41.rookdns.com
198.84.4.0	A+PTR	pix-cidr-00.pix.net
198.84.4.1	PTR	gatekeeper.pix.net
198.84.13.11	A	mail.paragonrtc.com
198.84.14.10	A+PTR	ftp.westjet.com
198.84.14.10	A+PTR	hgftp01.westjet.com
198.84.14.10	A+PTR	mail02.westjet.com
198.84.14.12	PTR	mail04.westjet.com
198.84.14.12	PTR	flicacc1.westjet.com
198.84.14.35	A	encorewings.westjet.com
198.84.14.35	A	signin.westjet.com
198.84.14.35	A	developernp.westjet.com
198.84.14.36	PTR	i360mobile.westjet.com
198.84.14.36	PTR	onephone.westjet.com
198.84.14.41	PTR	hggtm.monwestjet.com
198.84.14.41	PTR	hggtm.mywestjet.com
198.84.14.41	PTR	hggtm.westjet.com
198.84.14.42	A	www.glb.westjet.com
198.84.14.73	PTR	ycdcmci.westjet.com
198.84.14.73	A	ycmci.westjet.com
198.84.14.74	A	ftp.westjet.com
198.84.14.86	PTR	wgwhg.westjet.com
198.84.14.86	A	westnet.glb.westjet.com
198.84.14.86	A	crewapps.glb.westjet.com
198.84.14.96	A+PTR	sts.westjet.com
198.84.14.110	A	ycmci.westjet.com
198.84.14.111	A	ycwci.westjet.com
198.84.14.116	A+PTR	hybw.westjet.com
198.84.14.116	PTR	hyb.westjet.com
198.84.14.177	PTR	dev-uiservices.westjet.com
198.84.14.177	A+PTR	dev2-wlapi.westjet.com
198.84.14.177	PTR	testing.westjet.com
198.84.14.183	PTR	devwebservices.westjet.com
198.84.15.13	A	mkcheckin.westjet.com
198.84.15.27	A	anyconnect.mk.westjet.com
198.84.15.48	A	xnet.glb.westjet.com
198.84.15.120	A	edc-aruba.westjet.com
198.84.15.133	A	mkgtm.glb.westjet.com
198.84.15.133	A	mkgtm.westjet.com
198.84.15.133	A	mkgtm.monwestjet.com
198.84.15.160	A+PTR	mkaccess.westjet.com
198.84.15.161	A+PTR	mktwofactor.westjet.com
198.84.15.175	A	www.glb.westjet.com
198.84.15.175	A	origin-www.westjet.com
198.84.16.2	PTR	ftp.ecfmg.org
198.84.16.3	PTR	csa.ecfmg.org
198.84.16.3	A	erasfellowshipdocuments.com
198.84.16.33	PTR	scr.siemens.com
198.84.17.12	PTR	alti.jvnc.net
198.84.29.3	PTR	www.crothall.com
198.84.29.20	A	lp1.crothall.com