Robtex

Up: 209.225.56.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 209.225.56.0/25
Down right: 209.225.56.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.225.56.11	PTR	mail.apptix.net
209.225.56.21	A+PTR	delivery01.hostedmail.net
209.225.56.21	A	mail.pmac.ca
209.225.56.21	A	imr.netscal.net
209.225.56.29	A+PTR	ns0.apptix.com
209.225.56.30	A+PTR	ns1.apptix.com
209.225.56.46	PTR	vpn002.iad.hostedmail.net
209.225.56.100	PTR	atl1vexc014.balize.tco.tc
209.225.56.116	PTR	webaccess.hostedmail.net
209.225.56.126	PTR	mobile.hostedmail.net
209.225.56.145	A	in003.iad.hostedmail.net
209.225.56.157	A	stumppgroup.com
209.225.56.157	A	shimer-college.sharepoint.apptix.net
209.225.56.157	A	*.sharepointsite.com
209.225.56.165	PTR	apptix.com