Robtex

Up: 216.24.224.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.24.224.0/25
Down right: 216.24.224.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.24.224.1	A	gw-01.campaignerpro.com
216.24.224.1	A	gw-mci-01.campaignerpro.com
216.24.224.2	A	an.campaignerpro.com
216.24.224.4	A	files.campaignerpro.com
216.24.224.10	A+PTR	smtpq1.cmpgnr.com
216.24.224.10	A	smtpq1.verasend.com
216.24.224.10	A	smtpq1.gm14.com
216.24.224.11	A+PTR	mail1-1.protusfax.com
216.24.224.11	A	mail1-gur.protusfax.com
216.24.224.12	A+PTR	mail1-2.protusfax.com
216.24.224.12	A	mail2-gur.protusfax.com
216.24.224.13	A+PTR	mail1-3.protusfax.com
216.24.224.13	A	mail3-gur.protusfax.com
216.24.224.14	A	mail4-gur.protusfax.com
216.24.224.14	A	mail1-4.protusfax.com
216.24.224.15	A	proapi.campaignerpro.com
216.24.224.16	A	gotcorp.com
216.24.224.16	A	gotmarketing.com
216.24.224.40	PTR	app.campaignerpro.com
216.24.224.40	A	mail136.publicaster.com
216.24.224.40	A	mail158.publicaster.com
216.24.224.41	PTR	trk.cpro30.com
216.24.224.41	PTR	click.emailcampaigns.net
216.24.224.41	A	trk.publicaster.com
216.24.224.42	A	webview.email.tangeroutletsusa.com
216.24.224.42	A	archive.emailcampaigns.net
216.24.224.42	A	app.campaignerpro.com
216.24.224.44	A	silverchair.emailcampaigns.net
216.24.224.44	A	archive.skem1.com
216.24.224.44	A	trillium.emailcampaigns.net
216.24.224.45	A	media.emailcampaigns.net
216.24.224.46	A	extinguisher1.emailcampaigns.net
216.24.224.47	A	media.be.gotoextinguisher.com
216.24.224.47	A	extinguisher-media.emailcampaigns.net
216.24.224.48	A	mail2app.lynch2.emailcampaigns.net
216.24.224.48	A	ssl.lynch2.emailcampaigns.net
216.24.224.48	A	mail21app.lynch2.emailcampaigns.net
216.24.224.49	A	mail2app-media.lynch2.emailcampaigns.net
216.24.224.49	A	media.mail2app.lynch2.com
216.24.224.51	A	getvenga-media.emailcampaigns.net
216.24.224.51	A	media.getvengamarketing.com
216.24.224.52	A	aptivada1.emailcampaigns.net
216.24.224.53	PTR	icontactxe-media.emailcampaigns.net
216.24.224.53	A	campaignerimages.com
216.24.224.53	A	gotcampaign.com
216.24.224.54	A	jonasclub.emailcampaigns.net
216.24.224.54	A	emailmarketing.clubhouseonline-e3.com
216.24.224.55	A	jonasclub-media.emailcampaigns.net
216.24.224.55	A	media.clubhouseonline-e3.com
216.24.224.61	A	mail1.protusfax.com
216.24.224.65	A+PTR	mail1-5.protusfax.com
216.24.224.65	A	mail5-gur.protusfax.com
216.24.224.66	A	mail6-gur.protusfax.com
216.24.224.66	A	mail1-6.protusfax.com
216.24.224.67	A+PTR	mail1-7.protusfax.com
216.24.224.67	A	mail7-gur.protusfax.com
216.24.224.68	A	mail8-gur.protusfax.com
216.24.224.68	A	mail1-8.protusfax.com
216.24.224.79	PTR	mailout.yow.j2.com
216.24.224.79	A	efaxds.com
216.24.224.80	A	efaxsendsecure.com
216.24.224.81	A	sendrelay9.j2.com
216.24.224.89	A	mailsquadron-media.emailcampaigns.net
216.24.224.89	A	media.mailsquadron.com
216.24.224.100	A+PTR	trk.cp20.com
216.24.224.100	A+PTR	trk.cpro20.com
216.24.224.100	A+PTR	click.skem1.com
216.24.224.103	A	fmgdata.emailcampaigns.net
216.24.224.125	A	internetfax.telus.com
216.24.224.129	A	secure.myfax.com
216.24.224.130	A	secure.virtualfax.com
216.24.224.132	A	securemedia.campaigner.com
216.24.224.134	PTR	www.campaigner.com
216.24.224.134	A	www.gotcorp.com
216.24.224.134	A	wip.www.campaigner.com
216.24.224.136	A	myfax.com
216.24.224.136	A	www.myfax.com
216.24.224.136	A	www.myfaxfree.com
216.24.224.137	A	www.protus.com
216.24.224.137	A	myfax.co.uk
216.24.224.137	A	protus.com
216.24.224.138	A	www.protusfax.com
216.24.224.139	A	www.rogersfax.com
216.24.224.141	A	origin-media.campaigner.com
216.24.224.142	PTR	relay.csmtp.net
216.24.224.142	A	csmtp.net
216.24.224.181	A	sendrelay10.j2.com
216.24.224.182	A	sendrelay11.j2.com
216.24.224.183	A	sendrelay12.j2.com