Robtex

Up: 72.37.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 72.37.248.0/22
Down right: 72.37.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.37.248.4	A+PTR	1761ob.scansafe.net
72.37.248.12	A	1762ob.scansafe.net
72.37.248.19	A+PTR	tower1763.scansafe.net
72.37.248.20	A+PTR	1763ob.scansafe.net
72.37.248.28	A+PTR	1764ob.scansafe.net
72.37.248.33	PTR	1771ob.scansafe.net
72.37.248.34	A+PTR	tower1772.scansafe.net
72.37.248.36	A	tower1773.scansafe.net
72.37.248.37	A	1773ob.scansafe.net
72.37.248.38	A	tower1774.scansafe.net
72.37.248.46	A	tower1784.scansafe.net
72.37.248.47	A	1784ob.scansafe.net
72.37.249.20	A	162ob.scansafe.net
72.37.249.27	A+PTR	tower163.scansafe.net
72.37.249.28	A+PTR	163ob.scansafe.net
72.37.249.35	A+PTR	tower164.scansafe.net
72.37.249.36	A+PTR	164ob.scansafe.net
72.37.249.43	A	tower165.scansafe.net
72.37.249.44	A+PTR	165ob.scansafe.net
72.37.249.52	A	1591ob.scansafe.net
72.37.249.59	A	tower1592.scansafe.net
72.37.249.60	A+PTR	1592ob.scansafe.net
72.37.249.68	A+PTR	1593ob.scansafe.net
72.37.249.76	A+PTR	1594ob.scansafe.net
72.37.249.84	A+PTR	1601ob.scansafe.net
72.37.249.84	A	www.shellmarineapp.com
72.37.249.92	A+PTR	1602ob.scansafe.net
72.37.249.99	A+PTR	tower1603.scansafe.net
72.37.249.100	A+PTR	1603ob.scansafe.net
72.37.249.116	A+PTR	1611ob.scansafe.net
72.37.249.123	A	tower1612.scansafe.net
72.37.249.124	A+PTR	1612ob.scansafe.net
72.37.249.132	A	1613ob.scansafe.net
72.37.249.147	A+PTR	tower1621.scansafe.net
72.37.249.172	A+PTR	1624ob.scansafe.net
72.37.249.203	A+PTR	tower1634.scansafe.net
72.37.249.204	A+PTR	1634ob.scansafe.net
72.37.250.54	A	mail.adminhr.com
72.37.250.131	A+PTR	www.adminhr.com
72.37.250.131	A	adminhr.com
72.37.250.135	A+PTR	trm.adminhr.com
72.37.250.158	A	ts-gw.reprintsdesk.com
72.37.250.163	PTR	www.reprintsdesk.com
72.37.250.164	A	ca.reprintsdesk.com
72.37.250.165	A	trm-01.reprintsdesk.com
72.37.250.170	A	ftps.reprintsdesk.com
72.37.250.174	A	ftp.reprintsdesk.com
72.37.250.181	A	mx.reprintsdesk.com
72.37.250.187	A	mail.reprintsdesk.com
72.37.250.218	A	tumaykin.com
72.37.251.5	A	shopmsstatealumni.com
72.37.251.5	A	shopdartmouthalumni.com
72.37.251.5	A	shopduquesnealumni.com
72.37.251.100	PTR	bncollege.com
72.37.252.12	A	s998i.pbxtra.fonality.com
72.37.252.102	A	trix-2.org
72.37.252.102	A	trix2.org
72.37.252.102	A	asteriskathome.org
72.37.252.110	PTR	ns1.fonality.com
72.37.252.111	PTR	pbxtra-ns1.fonality.com
72.37.252.199	A	web9.fonality.com
72.37.252.199	A	web9-eth0.fonality.com
72.37.252.225	A	web14.fonality.com