Robtex

Up: 216.231.212.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 216.231.214.0/24
Down right: 216.231.215.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.231.214.1	PTR	214.1.csx.com
216.231.214.13	A+PTR	214.13.csx.com
216.231.214.13	PTR	www.myshipcsx.com
216.231.214.13	PTR	myshipcsx.com
216.231.214.14	A	www.csxvolunteerism.com
216.231.214.15	A	pd.csx.com
216.231.214.22	PTR	214.22.csx.com
216.231.214.25	PTR	214.25.csx.com
216.231.214.25	A	weboutlook.csx.com
216.231.214.31	A+PTR	lync2013web.csx.com
216.231.214.33	PTR	schedphysical.csx.com
216.231.214.36	PTR	214.36.csx.com
216.231.214.36	A	nowweb.csx.com
216.231.214.54	PTR	214.54.csx.com
216.231.214.54	A	cims.transflo.net
216.231.214.55	PTR	214.55.csx.com
216.231.214.55	A	www.completesupplychain.net
216.231.214.55	A	completesupplychain.net
216.231.214.58	PTR	emaps.csx.com
216.231.214.58	PTR	corporate-social-responsibility-prod.csx.com
216.231.214.58	PTR	idpap.csx.com
216.231.214.59	PTR	214.59.csx.com
216.231.214.61	PTR	214.61.csx.com
216.231.214.61	A	suppliers.csx.com
216.231.214.64	PTR	www.csxintermodalterminals.com
216.231.214.64	PTR	new-freightsalvage.freightsalvage.com
216.231.214.64	PTR	www.ezprice.biz
216.231.214.72	PTR	214.72.csx.com
216.231.214.72	A	aitc.com
216.231.214.74	PTR	214.74.csx.com
216.231.214.74	A	taxi.csx.com
216.231.214.81	PTR	www.csxtransflodemexico.net
216.231.214.81	PTR	mexiflo.com
216.231.214.81	PTR	www.transflologistics.com
216.231.214.87	PTR	webmail.csx.com
216.231.214.87	PTR	exchange2013.csx.com
216.231.214.89	PTR	214.89.csx.com
216.231.214.89	A	beyondourrails.com
216.231.214.121	PTR	214.121.csx.com
216.231.214.121	A	sxlogon.csx.com
216.231.214.121	A	atam.csx.com
216.231.214.138	PTR	214.138.csx.com
216.231.214.138	A	apps.csx.com
216.231.215.27	A+PTR	215.27.csx.com
216.231.215.61	A+PTR	215.61.csx.com
216.231.215.168	A+PTR	215.168.csx.com
216.231.215.229	A+PTR	215.229.csx.com