Robtex

Up: 216.255.100.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.255.101.0/25
Down right: 216.255.101.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.255.101.6	A	ydcns.gslbnse.montefiore.org
216.255.101.26	A+PTR	ns1.montefiore.org
216.255.101.27	A+PTR	ns2.montefiore.org
216.255.101.28	A+PTR	ykpoxs1.montefiore.org
216.255.101.30	A	mis-vp1.montefiore.org
216.255.101.31	A	mis-vp2.montefiore.org
216.255.101.37	A	ns4.montefiore.org
216.255.101.50	A+PTR	dyn-cli-50.montefiore.org
216.255.101.51	A+PTR	dyn-cli-51.montefiore.org
216.255.101.53	A	dyn-cli-53.montefiore.org
216.255.101.59	A+PTR	dyn-cli-59.montefiore.org
216.255.101.60	A	dyn-cli-60.montefiore.org
216.255.101.73	A	mail.montefiore.org
216.255.101.74	A	mta1.emerginghealthit.com
216.255.101.78	A+PTR	bahnhhqa.montefiore.org
216.255.101.79	PTR	www.sharedportal.org
216.255.101.79	A	d8ff654f.cst.lightpath.net
216.255.101.82	PTR	www.emerginghealthit.com
216.255.101.82	A	onetestehit.com
216.255.101.82	A	ehit.org
216.255.101.99	A	clgtest.emerginghealthit.com
216.255.101.123	A+PTR	www.montefiore.org
216.255.101.123	A	inspiredmedicine.com
216.255.101.123	A	atusalud.org
216.255.101.135	A	www.emerginghealthit.org
216.255.101.135	A	cmocares.org
216.255.101.135	A	www.emerginghealthit.com
216.255.101.174	A	montekids.org
216.255.101.174	A	www.montekids.org
216.255.101.174	A	www.cham.org
216.255.101.188	A	gw.montefiore.org
216.255.101.188	A	owa.montefiore.org
216.255.101.188	A	gwwa01.montefiore.org
216.255.101.192	A+PTR	hhavpn.montefiore.org
216.255.101.215	A+PTR	snfepic.montefiore.org
216.255.101.216	A+PTR	mychart.montefiore.org
216.255.101.223	A+PTR	sftp.emerginghealthit.com
216.255.101.223	A	ftp.emerginghealthit.com
216.255.101.232	A	www1.montefiore.org
216.255.101.233	A+PTR	www2.montefiore.org
216.255.101.237	A+PTR	www.montekids.org
216.255.101.237	A	montekids.org
216.255.101.237	A	montefiorehealthsystem.org
216.255.101.243	A+PTR	mx1.montefiore.org
216.255.101.244	A+PTR	mx2.montefiore.org