Robtex

Up: 138.16.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 138.16.0.0/18
Down right: 138.16.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.16.1.1	PTR	minden-202-r.resnet.brown.edu
138.16.3.119	PTR	andrewseast-119.resnet.brown.edu
138.16.3.223	PTR	andrewseast-223.resnet.brown.edu
138.16.4.2	PTR	andrewswest-2.resnet.brown.edu
138.16.5.2	PTR	champlin-2.resnet.brown.edu
138.16.8.147	PTR	metcalf-147.resnet.brown.edu
138.16.14.0	PTR	caswell-enet.resnet.brown.edu
138.16.14.131	PTR	caswell-131.resnet.brown.edu
138.16.16.43	PTR	hope-slater-43.resnet.brown.edu
138.16.18.24	PTR	gradcenter-a-24.resnet.brown.edu
138.16.21.199	PTR	gradcenter-d-199.resnet.brown.edu
138.16.23.129	PTR	harkness-129.resnet.brown.edu
138.16.32.85	PTR	jameson-85.resnet.brown.edu
138.16.33.27	PTR	mead-27.resnet.brown.edu
138.16.35.192	PTR	wayland-192.resnet.brown.edu
138.16.38.1	PTR	goddard-r.resnet.brown.edu
138.16.40.129	PTR	olney-129.resnet.brown.edu
138.16.41.248	A	randomkitty.com
138.16.60.2	A+PTR	techhouse.brown.edu
138.16.60.2	A	www.energyconsumption.org
138.16.60.2	A	chris-chin.com
138.16.60.3	PTR	mx.techhouse.brown.edu
138.16.123.37	A	veonada.org