Robtex

Up: 185.227.48.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 185.227.50.0/24
Down right: 185.227.51.0/24

IP	Type	Hostname
185.227.50.10	A+PTR	er10.j.sendactive.com
185.227.50.13	A+PTR	er13.j.sendactive.com
185.227.50.14	A+PTR	er14.j.sendactive.com
185.227.50.17	A+PTR	er17.k.sendscene.com
185.227.50.19	A+PTR	er19.k.sendscene.com
185.227.50.21	A+PTR	er21.l.sendfirm.com
185.227.50.24	A+PTR	er24.l.sendfirm.com
185.227.50.27	A+PTR	er27.m.motionsend.com
185.227.50.28	A+PTR	er28.m.motionsend.com
185.227.50.29	A+PTR	er29.m.motionsend.com
185.227.50.34	A+PTR	er34.m.motionsend.com
185.227.50.39	A+PTR	er39.m.motionsend.com
185.227.50.41	A+PTR	er41.m.motionsend.com
185.227.50.42	A+PTR	er42.m.motionsend.com
185.227.50.44	A+PTR	er44.m.motionsend.com
185.227.50.48	A+PTR	er48.m.motionsend.com
185.227.50.50	A+PTR	er50.m.motionsend.com
185.227.50.51	A+PTR	er51.m.motionsend.com
185.227.50.53	A+PTR	er53.m.motionsend.com
185.227.50.56	A+PTR	er56.m.motionsend.com
185.227.50.57	A+PTR	er57.m.motionsend.com
185.227.50.58	A+PTR	er58.m.motionsend.com
185.227.50.59	A+PTR	er59.m.motionsend.com
185.227.50.65	PTR	smtp65.aurorardns.net
185.227.50.101	A+PTR	er101.j.sendactive.com
185.227.50.102	A+PTR	er102.j.sendactive.com
185.227.50.103	A+PTR	er103.j.sendactive.com
185.227.50.106	A+PTR	er106.j.sendactive.com
185.227.50.107	A+PTR	er107.j.sendactive.com
185.227.50.108	A+PTR	er108.j.sendactive.com
185.227.50.109	A+PTR	er109.j.sendactive.com
185.227.50.110	A+PTR	er110.j.sendactive.com
185.227.50.111	A+PTR	er111.j.sendactive.com
185.227.50.113	A+PTR	er113.j.sendactive.com
185.227.50.116	A+PTR	er116.j.sendactive.com
185.227.50.118	A+PTR	er118.j.sendactive.com
185.227.50.122	A+PTR	er122.j.sendactive.com
185.227.50.123	A+PTR	er123.j.sendactive.com
185.227.50.136	A+PTR	er136.j.sendactive.com
185.227.50.139	A+PTR	er139.j.sendactive.com
185.227.50.171	A+PTR	er171.k.sendscene.com
185.227.50.182	A+PTR	er182.k.sendscene.com
185.227.50.187	A+PTR	er187.k.sendscene.com
185.227.50.191	A+PTR	er191.k.sendscene.com
185.227.50.217	A+PTR	er217.l.sendfirm.com
185.227.50.227	A+PTR	er227.l.sendfirm.com
185.227.50.247	A+PTR	er247.l.sendfirm.com
185.227.50.249	A+PTR	er249.l.sendfirm.com
185.227.51.1	A+PTR	smtp.dataservreg133.com
185.227.51.12	A+PTR	smtp.dataservreg156.com
185.227.51.100	A+PTR	smtp.dataservreg135.com
185.227.51.102	A+PTR	smtp.dataservreg137.com
185.227.51.104	A+PTR	smtp.dataservreg139.com
185.227.51.113	A+PTR	smtp.dataservreg149.com
185.227.51.114	A+PTR	smtp.dataservreg150.com
185.227.51.115	A+PTR	smtp.dataservreg151.com
185.227.51.116	A+PTR	smtp.dataservreg152.com
185.227.51.117	A+PTR	smtp.dataservreg153.com
185.227.51.118	A+PTR	smtp.dataservreg154.com
185.227.51.119	A+PTR	smtp.dataservreg155.com
185.227.51.121	A+PTR	smtp.dataservreg158.com
185.227.51.125	A+PTR	smtp.dataservreg162.com
185.227.51.182	A+PTR	er182.a.dsserverdns.com
185.227.51.182	A	er182.a.dataserverdns182.com
185.227.51.183	A+PTR	er183.a.dataserverdns183.com
185.227.51.184	A+PTR	smtp184.vippooling.com
185.227.51.185	A+PTR	smtp185.vippooling.com
185.227.51.185	A	er185.a.dataserverdns185.com
185.227.51.186	A+PTR	er186.o.sendnexus.com
185.227.51.186	A	er186.a.dataserverdns186.com
185.227.51.187	A+PTR	er187.a.dsserverdns.com
185.227.51.187	A	er187.a.dataserverdns187.com
185.227.51.188	A+PTR	er188.p.innersend.com
185.227.51.189	A+PTR	er189.a.dsserverdns.com
185.227.51.189	A	er189.a.dataserverdns189.com
185.227.51.190	A+PTR	smtp190.vippooling.com
185.227.51.194	A+PTR	er194.a.dsserverdns.com
185.227.51.194	A	er194.a.dataserverdns194.com
185.227.51.195	A+PTR	er195.a.dsserverdns.com
185.227.51.195	A	er195.a.dataserverdns195.com
185.227.51.196	A+PTR	er196.a.dsserverdns.com
185.227.51.196	A	er196.a.dataserverdns196.com
185.227.51.197	A+PTR	er197.a.dsserverdns.com
185.227.51.197	A	er197.a.dataserverdns197.com
185.227.51.198	A+PTR	er198.a.dsserverdns.com
185.227.51.198	A	er198.a.dataserverdns198.com
185.227.51.203	A+PTR	er203.a.dsserverdns.com
185.227.51.203	A	er203.a.dataserverdns203.com
185.227.51.205	A+PTR	er205.a.dsserverdns.com
185.227.51.205	A	er205.a.dataserverdns205.com
185.227.51.206	A+PTR	er206.a.dataserverdns206.com
185.227.51.227	A+PTR	smtp.dataservreg18.com
185.227.51.245	A+PTR	smtp.dataservreg1.com