Robtex

Up: 66.63.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 66.63.0.0/20
Down right: 66.63.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.63.0.13	A	appc.realconnect.com
66.63.0.14	A	appc.presscom.net
66.63.0.22	A	abcus.presscom.net
66.63.0.69	A	no-spam2.realconnect.com
66.63.0.73	A	no-spam1.realconnect.com
66.63.0.75	A+PTR	spamtrap.realconnect.com
66.63.0.82	A	npb-core2-switch.realconnect.com
66.63.0.98	A	ge0-1.cr1.mcln-va.realconnect.com
66.63.0.192	PTR	loopback0.cr1.wash-dc.realconnect.com
66.63.0.192	A	cr1.wash-dc.realconnect.com
66.63.0.193	PTR	loopback0.cr1.mcln-va.realconnect.com
66.63.0.193	A	cr1.mcln-va.realconnect.com
66.63.0.194	A+PTR	loopback0.cr1.ashb-va.realconnect.com
66.63.0.203	A	loopback0.cas1.tysn-va.realconnect.com
66.63.0.226	A+PTR	npb-core-switch.realconnect.com
66.63.0.227	A	npb-sw4w.realconnect.com
66.63.0.228	A	npb-sw6w.realconnect.com
66.63.0.229	A	npb-sw8w.realconnect.com
66.63.1.1	A+PTR	s5-0-1.ar1.wash-dc.realconnect.com
66.63.1.5	PTR	s5-0-2.ar1.wash-dc.realconnect.com
66.63.1.33	A	s5-0-9.ar1.wash-dc.realconnect.com
66.63.1.45	A	s5-0-12.ar1.wash-dc.realconnect.com
66.63.1.53	A	s5-0-14.ar1.wash-dc.realconnect.com
66.63.1.65	A	s5-0-17.ar1.wash-dc.realconnect.com
66.63.1.81	A	s5-0-21.ar1.wash-dc.realconnect.com
66.63.1.101	A	s5-0-26.ar1.wash-dc.realconnect.com
66.63.1.109	A	s5-0-28.ar1.wash-dc.realconnect.com
66.63.1.117	A	s5-1-2.ar1.wash-dc.realconnect.com
66.63.1.125	A	s5-1-4.ar1.wash-dc.realconnect.com
66.63.1.129	A	s5-1-5.ar1.wash-dc.realconnect.com
66.63.1.133	A	s5-1-6.ar1.wash-dc.realconnect.com
66.63.1.153	A	s5-1-11.ar1.wash-dc.realconnect.com
66.63.1.177	A	s5-1-17.ar1.wash-dc.realconnect.com
66.63.1.201	A	s5-1-23.ar1.wash-dc.realconnect.com
66.63.1.205	A	s5-1-24.ar1.wash-dc.realconnect.com
66.63.1.221	A	s5-1-28.ar1.wash-dc.realconnect.com
66.63.1.242	A+PTR	mail.realconnect.com
66.63.1.245	A	pop3.nationalpress.com
66.63.1.247	A	pop3.kyododc.com
66.63.1.249	A	pop3.reply2me.com
66.63.2.0	PTR	66.63.2.0.realconnect.com
66.63.2.11	A	66-63-2-11.realconnect.com
66.63.2.11	A	66.63.2.11.realconnect.com
66.63.2.22	A	66.63.2.22.realconnect.com
66.63.2.30	A	66.63.2.30.realconnect.com
66.63.2.34	A+PTR	66-63-2-34.realconnect.com
66.63.2.34	A	66.63.2.34.realconnect.com
66.63.2.45	A	66.63.2.45.realconnect.com
66.63.2.65	PTR	66-63-2-65.realconnect.com
66.63.2.65	A	66.63.2.65.realconnect.com
66.63.2.70	A	66.63.2.70.realconnect.com
66.63.2.81	A	66.63.2.81.realconnect.com
66.63.2.102	A	66.63.2.102.realconnect.com
66.63.2.104	A	66.63.2.104.realconnect.com
66.63.2.106	A	66.63.2.106.realconnect.com
66.63.2.107	A	66.63.2.107.realconnect.com
66.63.2.129	PTR	66.63.2.129.realconnect.com
66.63.2.150	A	66.63.2.150.realconnect.com
66.63.2.194	A	66.63.2.194.realconnect.com
66.63.2.226	A+PTR	vas1.realconnect.com
66.63.2.229	A	vns1.realconnect.com
66.63.2.235	A	vms1.realconnect.com
66.63.2.238	A	vcnam1.realconnect.com
66.63.3.0	PTR	66.63.3.0.realconnect.com
66.63.3.226	A+PTR	ns1.realconnect.com
66.63.3.226	A	ns1.presscom.net
66.63.3.226	A	ns1.netcampaign.com
66.63.3.227	PTR	ns2.realconnect.com
66.63.3.227	A	ns2.netcampaign.com
66.63.3.228	A	mail.realconnect.com
66.63.3.252	A	smtp2.realconnect.com
66.63.4.0	PTR	66.63.4.0.realconnect.com
66.63.5.242	A+PTR	files.realconnect.com
66.63.5.245	A	stat1.realconnect.com
66.63.5.252	A+PTR	smtp2.realconnect.com
66.63.5.252	A	ns3a-cache.realconnect.com
66.63.5.253	PTR	ns2.realconnect.com
66.63.7.25	A	66-63-7-25.realconnect.com
66.63.7.25	A	66.63.7.25.realconnect.com
66.63.7.25	A	hikingupwards.org
66.63.7.67	PTR	66.63.7.67.realconnect.com
66.63.8.10	A	66.63.8.10.realconnect.com
66.63.8.13	A	66-63-8-13.realconnect.com
66.63.9.2	A+PTR	66-63-9-2.realconnect.com
66.63.9.18	A	66-63-9-18.realconnect.com
66.63.9.52	A	66-63-9-52.realconnect.com
66.63.9.54	A	publichealthexam.org
66.63.9.54	A	66-63-9-54.realconnect.com
66.63.9.58	A	66.63.9.58.realconnect.com
66.63.10.2	PTR	66.63.10.2.realconnect.com
66.63.10.5	A	66-63-10-5.realconnect.com
66.63.10.92	A	home.ouellet.biz
66.63.10.92	A	erimage.com
66.63.10.92	A	ouellet.biz
66.63.12.8	A	66.63.12.8.realconnect.com
66.63.12.8	A	66-63-12-8.realconnect.com
66.63.12.9	A	66.63.12.9.realconnect.com
66.63.12.9	A	66-63-12-9.realconnect.com
66.63.12.65	A+PTR	gw-office.realconnect.com
66.63.12.79	A	66.63.12.79.realconnect.com
66.63.12.81	A	66.63.12.81.realconnect.com
66.63.12.83	A	66.63.12.83.realconnect.com
66.63.12.109	A	log1.realconnect.com
66.63.12.110	A	scripts.realconnect.com
66.63.12.120	A	ouellet.realconnect.com
66.63.12.121	A	ws1.realconnect.com
66.63.12.131	A+PTR	66-63-12-131.realconnect.com
66.63.12.172	A	66.63.12.172.realconnect.com
66.63.12.175	A	66.63.12.175.realconnect.com
66.63.12.187	A	66-63-12-187.realconnect.com
66.63.12.190	A	66-63-12-190.realconnect.com
66.63.15.7	A	66.63.15.7.realconnect.com
66.63.16.10	A	66-63-16-10.realconnect.com
66.63.16.22	A	rdriaktymqua.com
66.63.16.22	A	fbcapnnhsloyooy.com
66.63.17.7	A	66.63.17.7.realconnect.com
66.63.17.15	A	66.63.17.15.realconnect.com
66.63.17.15	A	66-63-17-15.realconnect.com
66.63.17.36	A	66.63.17.36.realconnect.com
66.63.17.138	A	66-63-17-138.realconnect.com
66.63.18.5	A	66-63-18-5.realconnect.com
66.63.18.35	A+PTR	66-63-18-35.realconnect.com
66.63.18.55	A	66-63-18-55.realconnect.com
66.63.18.72	A	66-63-18-72.realconnect.com
66.63.18.82	A	66-63-18-82.realconnect.com
66.63.18.98	A+PTR	66-63-18-98.realconnect.com
66.63.18.111	A	66-63-18-111.realconnect.com
66.63.18.117	A	66-63-18-117.realconnect.com
66.63.18.143	A	66-63-18-143.realconnect.com
66.63.18.145	A	66-63-18-145.realconnect.com
66.63.18.149	A	66-63-18-149.realconnect.com
66.63.18.163	A+PTR	66-63-18-163.realconnect.com
66.63.18.172	A	66-63-18-172.realconnect.com
66.63.18.211	A	66-63-18-211.realconnect.com
66.63.18.222	A	66-63-18-222.realconnect.com
66.63.18.250	A	66-63-18-250.realconnect.com
66.63.19.67	PTR	ns1.netcampaign.com
66.63.19.75	A	plumedelle.com
66.63.19.80	A	mail.netcampaign.com
66.63.19.81	A	www1.netcampaign.com
66.63.19.82	A	www2.netcampaign.com
66.63.21.32	A	web.allenshariff.com
66.63.24.18	A	*.hna-civil.net
66.63.25.165	A	mail.asph.org
66.63.25.165	A	mail.aspph.org
66.63.25.165	A	mail.thisispublichealth.org
66.63.25.166	A	66-63-25-166.realconnect.com
66.63.27.16	A	66-63-27-16.realconnect.com
66.63.28.226	A+PTR	66.63.28.226.realconnect.com
66.63.31.3	PTR	66.63.31.3.realconnect.com