Robtex

Up: 152.135.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 152.135.232.0/23
Down right: 152.135.234.0/23

IP	Type	Hostname
152.135.235.5	A+PTR	ns1.amat.com
152.135.235.5	A	mis.amat.com
152.135.235.6	A+PTR	ns2.amat.com
152.135.235.7	A+PTR	ns3.amat.com
152.135.235.8	A+PTR	mx1.amat.com
152.135.235.9	A+PTR	mx1ext.amat.com
152.135.235.11	A+PTR	mx2ext.amat.com
152.135.235.12	A+PTR	mxsp1ext.amat.com
152.135.235.13	A+PTR	phobos.amat.com
152.135.235.14	A+PTR	deimos.amat.com
152.135.235.18	A+PTR	ecollab1.amat.com
152.135.235.19	A+PTR	ecollab2.amat.com
152.135.235.188	A+PTR	sclacorp.amat.com