Robtex

Up: 216.74.36.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.74.37.0/25
Down right: 216.74.37.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.74.37.0	A+PTR	0.37.74.216.rev.astrology.com
216.74.37.1	PTR	216.74.37.1.static.sfo.hosting.com
216.74.37.2	PTR	216.74.37.2.static.sfo.hosting.com
216.74.37.4	PTR	216.74.37.4.static.sfo.hosting.com
216.74.37.5	PTR	216.74.37.5.static.sfo.hosting.com
216.74.37.6	PTR	216.74.37.6.static.sfo.hosting.com
216.74.37.8	PTR	216.74.37.8.static.sfo.hosting.com
216.74.37.10	PTR	216.74.37.10.static.sfo.hosting.com
216.74.37.11	PTR	216.74.37.11.static.sfo.hosting.com
216.74.37.12	PTR	216.74.37.12.static.sfo.hosting.com
216.74.37.13	PTR	216.74.37.13.static.sfo.hosting.com
216.74.37.17	PTR	216.74.37.17.static.sfo.hosting.com
216.74.37.18	PTR	216.74.37.18.static.sfo.hosting.com
216.74.37.20	PTR	216.74.37.20.static.sfo.hosting.com
216.74.37.24	PTR	216.74.37.24.static.sfo.hosting.com
216.74.37.25	PTR	216.74.37.25.static.sfo.hosting.com
216.74.37.32	PTR	216.74.37.32.static.sfo.hosting.com
216.74.37.34	PTR	216.74.37.34.static.sfo.hosting.com
216.74.37.37	PTR	216.74.37.37.static.sfo.hosting.com
216.74.37.42	PTR	216.74.37.42.static.sfo.hosting.com
216.74.37.44	PTR	216.74.37.44.static.sfo.hosting.com
216.74.37.46	PTR	216.74.37.46.static.sfo.hosting.com
216.74.37.47	PTR	216.74.37.47.static.sfo.hosting.com
216.74.37.48	PTR	216.74.37.48.static.sfo.hosting.com
216.74.37.49	PTR	216.74.37.49.static.sfo.hosting.com
216.74.37.50	PTR	216.74.37.50.static.sfo.hosting.com
216.74.37.51	PTR	216.74.37.51.static.sfo.hosting.com
216.74.37.52	PTR	216.74.37.52.static.sfo.hosting.com
216.74.37.54	PTR	216.74.37.54.static.sfo.hosting.com
216.74.37.55	A+PTR	mtah55.astrology.com
216.74.37.55	A	ma-v2.astrology.com
216.74.37.59	PTR	216.74.37.59.static.sfo.hosting.com
216.74.37.60	PTR	216.74.37.60.static.sfo.hosting.com
216.74.37.61	PTR	216.74.37.61.static.sfo.hosting.com
216.74.37.62	PTR	216.74.37.62.static.sfo.hosting.com
216.74.37.63	PTR	216.74.37.63.static.sfo.hosting.com
216.74.37.64	PTR	216.74.37.64.static.sfo.hosting.com
216.74.37.65	PTR	216.74.37.65.static.sfo.hosting.com
216.74.37.66	PTR	216.74.37.66.static.sfo.hosting.com
216.74.37.68	PTR	216.74.37.68.static.sfo.hosting.com
216.74.37.69	PTR	216.74.37.69.static.sfo.hosting.com
216.74.37.70	PTR	216.74.37.70.static.sfo.hosting.com
216.74.37.71	PTR	216.74.37.71.static.sfo.hosting.com
216.74.37.72	PTR	216.74.37.72.static.sfo.hosting.com
216.74.37.73	PTR	216.74.37.73.static.sfo.hosting.com
216.74.37.74	PTR	216.74.37.74.static.sfo.hosting.com
216.74.37.77	PTR	216.74.37.77.static.sfo.hosting.com
216.74.37.78	PTR	216.74.37.78.static.sfo.hosting.com
216.74.37.80	PTR	216.74.37.80.static.sfo.hosting.com
216.74.37.83	PTR	216.74.37.83.static.sfo.hosting.com
216.74.37.85	PTR	216.74.37.85.static.sfo.hosting.com
216.74.37.87	PTR	216.74.37.87.static.sfo.hosting.com
216.74.37.88	PTR	216.74.37.88.static.sfo.hosting.com
216.74.37.90	PTR	216.74.37.90.static.sfo.hosting.com
216.74.37.93	PTR	md-v2.astrology.com
216.74.37.97	PTR	216.74.37.97.static.sfo.hosting.com
216.74.37.101	PTR	216.74.37.101.static.sfo.hosting.com
216.74.37.102	PTR	216.74.37.102.static.sfo.hosting.com
216.74.37.104	PTR	216.74.37.104.static.sfo.hosting.com
216.74.37.106	PTR	216.74.37.106.static.sfo.hosting.com
216.74.37.107	PTR	216.74.37.107.static.sfo.hosting.com
216.74.37.113	PTR	216.74.37.113.static.sfo.hosting.com
216.74.37.119	PTR	216.74.37.119.static.sfo.hosting.com
216.74.37.125	PTR	216.74.37.125.static.sfo.hosting.com
216.74.37.138	A+PTR	138.37.74.216.rev.astrology.com
216.74.37.139	PTR	139.37.74.216.rev.astrology.com
216.74.37.140	PTR	216.74.37.140.static.sfo.hosting.com
216.74.37.142	PTR	142.37.74.216.rev.astrology.com
216.74.37.142	A	www.au.gardenweb.com
216.74.37.143	PTR	216.74.37.143.static.sfo.hosting.com
216.74.37.155	PTR	216.74.37.155.static.sfo.hosting.com
216.74.37.158	PTR	bounce.ivmmmailsvc.com
216.74.37.163	PTR	163.37.74.216.rev.astrology.com
216.74.37.163	A	digitalworksatnbcu.com
216.74.37.163	A	familygoesstrong.com
216.74.37.164	PTR	216.74.37.164.static.sfo.hosting.com
216.74.37.166	PTR	bounce.stnlmailsvc.com
216.74.37.168	PTR	216.74.37.168.static.sfo.hosting.com
216.74.37.170	A	healthology.org
216.74.37.170	A	healthu.com
216.74.37.170	A	universal-networks.com
216.74.37.177	PTR	mailer13-v2.astronet.com
216.74.37.180	A	mail0-v2.astrology.com
216.74.37.181	A+PTR	181.37.74.216.rev.astrology.com
216.74.37.184	PTR	mailer23-v2.webstakes.com
216.74.37.185	PTR	bounce.twnmailsvc.com
216.74.37.187	PTR	mailer2-v2.astrology.com
216.74.37.195	A	195.37.74.216.rev.astrology.com
216.74.37.198	PTR	216.74.37.198.static.sfo.hosting.com
216.74.37.202	PTR	216.74.37.202.static.sfo.hosting.com
216.74.37.202	A	quizfarm.com
216.74.37.204	PTR	216.74.37.204.static.sfo.hosting.com
216.74.37.207	PTR	mailer11-v2.wsafmailsvc.com
216.74.37.207	A	mtah207.astrology.com
216.74.37.209	PTR	bounce.wsafmailsvc.com
216.74.37.211	PTR	216.74.37.211.static.sfo.hosting.com
216.74.37.216	PTR	216.74.37.216.static.sfo.hosting.com
216.74.37.217	A+PTR	mx-v2.astrology.com
216.74.37.217	A	mtah217.astrology.com
216.74.37.217	A	relay.ivillage.com
216.74.37.218	A+PTR	mailer12-v2.webstakes.com
216.74.37.218	A	mtah218.astrology.com
216.74.37.220	A+PTR	mb-v2.astrology.com
216.74.37.220	A	mtah220.astrology.com
216.74.37.229	A	mtah229.astrology.com
216.74.37.232	A	232.37.74.216.rev.astrology.com
216.74.37.234	A+PTR	234.37.74.216.rev.astrology.com
216.74.37.237	PTR	mailer21-v2.stnlmailsvc.com
216.74.37.238	PTR	mailer11-v2.ivnlmailsvc.com
216.74.37.241	PTR	mailer11-v2.twnmailsvc.com
216.74.37.243	A	mailer1.webstakes.com
216.74.37.248	A+PTR	mailer21-v2.webstakes.com
216.74.37.248	A	mtah248.astrology.com
216.74.37.249	PTR	mailer21-v2.astronet.com
216.74.37.251	PTR	mailer12-v2.twnmailsvc.com
216.74.37.252	PTR	mailer22-v2.twnmailsvc.com
216.74.37.254	PTR	mailer24-v2.webstakes.com