Robtex

Up: 207.140.140.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 207.140.140.0/25
Down right: 207.140.140.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
207.140.140.17	A+PTR	seattle.sandata.com
207.140.140.33	A+PTR	net.sandata.com
207.140.140.33	A	mail.callcarehomehealth.com
207.140.140.33	A	spam2.sandata.com
207.140.140.36	A+PTR	net2.sandata.com
207.140.140.36	A+PTR	spam.sandata.com
207.140.140.36	A	mail2.callcarehomehealth.com
207.140.140.37	A	transfer.sandata.com
207.140.140.40	A	mail1.hcopen.com
207.140.140.43	A+PTR	sandatafl.com
207.140.140.43	A+PTR	www.sandatafl.com
207.140.140.43	A+PTR	access.santrax.com
207.140.140.45	A	g2srvr.sandata.com
207.140.140.47	PTR	download.sandata.com
207.140.140.47	A+PTR	downloads.sandata.com
207.140.140.50	A	www.nhomecomplete.com
207.140.140.50	A	www.ndsihealthcare.com
207.140.140.50	A	nhomecomplete.com
207.140.140.51	A+PTR	careminders.sandata.com
207.140.140.51	A+PTR	la.sandata.com
207.140.140.51	PTR	nhome.sandata.com
207.140.140.52	PTR	sandata.com
207.140.140.54	A	santraxcare.com
207.140.140.54	A	www.santraxcare.com
207.140.140.55	PTR	integricor.com
207.140.140.55	PTR	integricor.net
207.140.140.55	PTR	test.integricor.com
207.140.140.57	A	www.hcopen.com
207.140.140.58	A+PTR	access.hcplus.com
207.140.140.59	A	mail2.hcopen.com
207.140.140.193	A	nat.sandata.com