Robtex

Up: 200.80.36.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 200.80.38.0/24
Down right: 200.80.39.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.80.38.4	A	mail.realtechcenterbureau.com
200.80.38.4	A	mail.smarttechcenterbureau.com
200.80.38.4	A	mail.visitglobaloptionteam.com
200.80.38.9	A+PTR	9.38.80.200.host.ifxnw.com.ar
200.80.38.19	A	mailt.arrebeef.com
200.80.38.19	A	server1.arrebeef.com
200.80.38.25	A+PTR	25.38.80.200.host.ifxnw.com.ar
200.80.38.32	A	ns1.enterglobaloptionteam.com
200.80.38.33	A	ns2.enterglobaloptionteam.com
200.80.38.37	A+PTR	37.38.80.200.host.ifxnw.com.ar
200.80.38.63	A	ns1.generalglobaloptionteam.com
200.80.38.64	A	ns2.generalglobaloptionteam.com
200.80.38.74	A+PTR	74.38.80.200.host.ifxnw.com.ar
200.80.38.86	A+PTR	86.38.80.200.host.ifxnw.com.ar
200.80.38.90	A	ns1.greatglobaloptionteam.com
200.80.38.91	A	ns2.greatglobaloptionteam.com
200.80.38.107	A	ns1.lastglobaloptionteam.com
200.80.38.108	A	ns2.lastglobaloptionteam.com
200.80.38.124	A	ns1.mediaglobaloptionteam.com
200.80.38.160	A	ns1.newfinancialcreditboreaugroup.com
200.80.38.176	A+PTR	176.38.80.200.host.ifxnw.com.ar
200.80.38.186	A	ns1.realtechcenterbureau.com
200.80.38.202	A	ns2.smarttechcenterbureau.com
200.80.38.240	A	ns2.yourglobaloptionteam.com
200.80.38.244	A+PTR	244.38.80.200.host.ifxnw.com.ar
200.80.39.55	A+PTR	55.39.80.200.host.ifxnw.com.ar
200.80.39.78	A+PTR	78.39.80.200.host.ifxnw.com.ar
200.80.39.81	A+PTR	81.39.80.200.host.ifxnw.com.ar
200.80.39.97	A+PTR	97.39.80.200.host.ifxnw.com.ar
200.80.39.210	A+PTR	210.39.80.200.host.ifxnw.com.ar