Robtex

Up: 67.231.146.0/23
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Down left: 67.231.146.0/25
Down right: 67.231.146.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
67.231.146.1	PTR	cr-vrrpd-vi.sc4.proofpoint.com
67.231.146.2	PTR	cr001-ge-1-0-6.sc4.proofpoint.com
67.231.146.3	PTR	cr002-ge-1-0-6.sc4.proofpoint.com
67.231.146.7	A+PTR	anomalytics.proofpoint.com
67.231.146.8	PTR	threatinsight.proofpoint.com
67.231.146.9	PTR	api.proofpoint.com
67.231.146.10	PTR	admingwd.sc4.proofpoint.com
67.231.146.11	PTR	admingwdpic.sc4.proofpoint.com
67.231.146.30	PTR	ha1.us2.proofpointarchiving.net
67.231.146.33	A+PTR	ushacus01.us2.proofpointarchiving.net
67.231.146.33	A	pparchosted.us2.proofpointarchiving.net
67.231.146.34	A+PTR	ushacus03.us2.proofpointarchiving.net
67.231.146.34	A	petco.us2.proofpointarchiving.net
67.231.146.35	A+PTR	ushacus02.us2.proofpointarchiving.net
67.231.146.36	A+PTR	ushacus05.us2.proofpointarchiving.net
67.231.146.36	A	nebh.us2.proofpointarchiving.net
67.231.146.37	A+PTR	ushacus07.us2.proofpointarchiving.net
67.231.146.37	A	vmware.us2.proofpointarchiving.net
67.231.146.38	A+PTR	ushacus06.us2.proofpointarchiving.net
67.231.146.38	A	mentor.us2.proofpointarchiving.net
67.231.146.39	A+PTR	ushacus08.us2.proofpointarchiving.net
67.231.146.39	A	slalom.us2.proofpointarchiving.net
67.231.146.40	A+PTR	ushacus09.us2.proofpointarchiving.net
67.231.146.41	A+PTR	ushacus11.us2.proofpointarchiving.net
67.231.146.41	A	starwood.us2.proofpointarchiving.net
67.231.146.42	A+PTR	ushacus10.us2.proofpointarchiving.net
67.231.146.43	A+PTR	ushacus12.us2.proofpointarchiving.net
67.231.146.44	A+PTR	ushacus13.us2.proofpointarchiving.net
67.231.146.47	A+PTR	ushacus14.us2.proofpointarchiving.net
67.231.146.48	A+PTR	ushacus15.us2.proofpointarchiving.net
67.231.146.49	A+PTR	ushacus16.us2.proofpointarchiving.net
67.231.146.50	A+PTR	ushacus17.us2.proofpointarchiving.net
67.231.146.51	A+PTR	ushacus23.us2.proofpointarchiving.net
67.231.146.52	A+PTR	ushacus31.us2.proofpointarchiving.net
67.231.146.54	A+PTR	ushacus18.us2.proofpointarchiving.net
67.231.146.55	A+PTR	ushacus19.us2.proofpointarchiving.net
67.231.146.56	A+PTR	ushacus20.us2.proofpointarchiving.net
67.231.146.57	A+PTR	ushacus21.us2.proofpointarchiving.net
67.231.146.58	A+PTR	ushacus22.us2.proofpointarchiving.net
67.231.146.60	A+PTR	ushacus24.us2.proofpointarchiving.net
67.231.146.61	A+PTR	ushacus25.us2.proofpointarchiving.net
67.231.146.62	A+PTR	ushacus26.us2.proofpointarchiving.net
67.231.146.63	A+PTR	ushacus27.us2.proofpointarchiving.net
67.231.146.64	A+PTR	ushacus28.us2.proofpointarchiving.net
67.231.146.65	A+PTR	taptest.pphosted.com
67.231.146.65	A	mx0a-taptest.pphosted.com
67.231.146.66	PTR	urldefense.proofpoint.com
67.231.146.66	A	urldefense.gslb.proofpoint.com
67.231.146.67	A+PTR	ushacus29.us2.proofpointarchiving.net
67.231.146.68	PTR	registration.proofpoint.com
67.231.146.68	PTR	ushacus146.us2.proofpointarchiving.net
67.231.146.69	PTR	secureshare.proofpoint.com
67.231.146.69	PTR	ushacus147.us2.proofpointarchiving.net
67.231.146.70	PTR	login.proofpoint.com
67.231.146.71	PTR	sharetest.pphosted.com
67.231.146.71	A	mx0a-sharetest.pphosted.com
67.231.146.72	A+PTR	00010701.pphosted.com
67.231.146.73	A+PTR	0003ca02.pphosted.com
67.231.146.74	A+PTR	000e2003.pphosted.com
67.231.146.75	A+PTR	ushacus30.us2.proofpointarchiving.net
67.231.146.77	PTR	ushacus154.us2.proofpointarchiving.net
67.231.146.77	A	000e8b02.pphosted.com
67.231.146.78	A+PTR	00039001.pphosted.com
67.231.146.79	A+PTR	0012dd02.pphosted.com
67.231.146.83	A+PTR	mx0a-00000f09.pphosted.com
67.231.146.83	A	00000f09.pphosted.com
67.231.146.84	PTR	ingest.pulse.proofpoint.com
67.231.146.85	A+PTR	analyzer.proofpoint.com
67.231.146.85	A	analyzer.gslb.proofpoint.com
67.231.146.86	A+PTR	attachmentquarantine.proofpoint.com
67.231.146.86	A	attachmentquarantine.gslb.proofpoint.com
67.231.146.89	PTR	mx0a-cid.pphosted.com
67.231.146.90	A+PTR	attachmentdefense.proofpoint.com
67.231.146.91	A+PTR	attachmentdefense-sc4.proofpoint.com
67.231.146.94	A	auth.gslb.proofpoint.com
67.231.146.94	A	registration.gslb.proofpoint.com
67.231.146.94	A	login.gslb.proofpoint.com
67.231.146.96	A+PTR	ushacus32.us2.proofpointarchiving.net
67.231.146.97	A+PTR	ushacus43.us2.proofpointarchiving.net
67.231.146.100	A+PTR	ushacus04.us2.proofpointarchiving.net
67.231.146.102	A+PTR	ushacus34.us2.proofpointarchiving.net
67.231.146.104	A+PTR	ushacus35.us2.proofpointarchiving.net
67.231.146.105	A+PTR	ushacus33.us2.proofpointarchiving.net
67.231.146.106	A+PTR	ushacus36.us2.proofpointarchiving.net
67.231.146.107	A+PTR	ushacus37.us2.proofpointarchiving.net
67.231.146.108	A+PTR	ushacus38.us2.proofpointarchiving.net
67.231.146.109	A+PTR	pparchosted3.us2.proofpointarchiving.net
67.231.146.111	A+PTR	ushacus39.us2.proofpointarchiving.net
67.231.146.112	A+PTR	ushacus40.us2.proofpointarchiving.net
67.231.146.113	A+PTR	ushacus41.us2.proofpointarchiving.net
67.231.146.114	A+PTR	ushacus42.us2.proofpointarchiving.net
67.231.146.116	A+PTR	ushacus44.us2.proofpointarchiving.net
67.231.146.118	A+PTR	ushacus46.us2.proofpointarchiving.net
67.231.146.119	A+PTR	ushacus47.us2.proofpointarchiving.net
67.231.146.120	A+PTR	ushacus48.us2.proofpointarchiving.net
67.231.146.121	A+PTR	ushacus49.us2.proofpointarchiving.net
67.231.146.122	A+PTR	ushacus50.us2.proofpointarchiving.net
67.231.146.123	A+PTR	ushacus51.us2.proofpointarchiving.net
67.231.146.124	A+PTR	ushacus52.us2.proofpointarchiving.net
67.231.146.125	A+PTR	ushacus53.us2.proofpointarchiving.net
67.231.146.127	A+PTR	ushacus54.us2.proofpointarchiving.net
67.231.146.128	A+PTR	ushacus55.us2.proofpointarchiving.net
67.231.146.129	A+PTR	ushacus56.us2.proofpointarchiving.net
67.231.146.131	A+PTR	ushacus57.us2.proofpointarchiving.net
67.231.146.140	A+PTR	ushacus70.us2.proofpointarchiving.net
67.231.146.150	PTR	secureshare.proofpoint.com
67.231.146.151	A+PTR	secureshare.proofpoint.com
67.231.146.151	A	secureshareservice.proofpoint.com
67.231.146.151	A	sft.edmc.edu
67.231.146.200	PTR	mail.sorbs.net
67.231.146.201	PTR	hades.sorbs.net
67.231.146.202	PTR	demon.sorbs.net
67.231.146.224	A+PTR	ushacus58.us2.proofpointarchiving.net
67.231.146.225	A+PTR	ushacus59.us2.proofpointarchiving.net
67.231.146.226	A+PTR	ushacus60.us2.proofpointarchiving.net
67.231.146.227	A+PTR	ushacus61.us2.proofpointarchiving.net
67.231.146.228	A+PTR	ushacus62.us2.proofpointarchiving.net
67.231.146.229	PTR	ushacus173.us2.proofpointarchiving.net
67.231.146.229	A	ushacus63.us2.proofpointarchiving.net
67.231.146.230	A+PTR	ushacus64.us2.proofpointarchiving.net
67.231.146.231	A+PTR	ushacus65.us2.proofpointarchiving.net
67.231.146.232	A+PTR	ushacus66.us2.proofpointarchiving.net
67.231.146.233	A+PTR	ushacus67.us2.proofpointarchiving.net
67.231.146.234	A+PTR	ushacus68.us2.proofpointarchiving.net
67.231.146.235	A+PTR	ushacus69.us2.proofpointarchiving.net
67.231.146.236	PTR	ushacus71.us2.proofpointarchiving.net
67.231.146.237	A+PTR	ushacus72.us2.proofpointarchiving.net