Robtex

Up: 216.52.172.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.52.173.0/25
Down right: 216.52.173.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.52.173.2	A	mail.chrsolutions.com
216.52.173.2	A	mail.newf.com
216.52.173.4	PTR	4.173.52.216.chrsolutions.com
216.52.173.4	A	host455.chrsolutions.com
216.52.173.4	A	filter2.netamericaalliance.co
216.52.173.9	PTR	9.173.52.216.chrsolutions.com
216.52.173.9	A	www.newf.com
216.52.173.9	A	newf.com
216.52.173.11	PTR	11.173.52.216.chrsolutions.com
216.52.173.11	A	ns11.newf.com
216.52.173.13	PTR	13.173.52.216.chrsolutions.com
216.52.173.38	PTR	38.173.52.216.chrsolutions.com
216.52.173.38	A	omniasoftware.com
216.52.173.38	A	www.martin-group.com
216.52.173.43	PTR	43.173.52.216.chrsolutions.com
216.52.173.55	PTR	55.173.52.216.chrsolutions.com
216.52.173.77	PTR	77.173.52.216.chrsolutions.com
216.52.173.83	A	mail5.broadwayacrossamerica.com
216.52.173.89	PTR	89.173.52.216.chrsolutions.com
216.52.173.90	A	mail.fts-solutions.com
216.52.173.90	A	fts-solutions.com
216.52.173.91	PTR	91.173.52.216.chrsolutions.com
216.52.173.91	A	sososinc.com
216.52.173.91	A	dentistvue.com
216.52.173.94	A	ftp.ymcahouston.org
216.52.173.99	A+PTR	filter1.anchordns.com
216.52.173.99	A	filter2.chrsolutions.com
216.52.173.99	A	filter1.suegormanlp.com
216.52.173.110	PTR	110.173.52.216.chrsolutions.com
216.52.173.110	A	nfc110.newf.com
216.52.173.122	A	nfc122.newf.com
216.52.173.143	A	nfc143.newf.com
216.52.173.145	A	nfc145.newf.com
216.52.173.155	A	nfc155.newf.com
216.52.173.170	A	nfc170.newf.com
216.52.173.186	A	nfc186.newf.com
216.52.173.210	A	nfc210.newf.com
216.52.173.229	A	nfc229.newf.com
216.52.173.234	PTR	n2.netamericaalliance.com
216.52.173.234	A	nfc234.newf.com
216.52.173.235	PTR	n3.netamericaalliance.com
216.52.173.235	A	bonfire4g.com
216.52.173.235	A	nfc235.newf.com