Robtex

Up: 138.204.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 138.204.232.0/23
Down right: 138.204.234.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.204.232.17	A	scontent.frec19-1.fna.fbcdn.net
138.204.232.33	A	instagram.frec19-1.fna.fbcdn.net
138.204.232.34	A	media.frec19-1.fna.whatsapp.net
138.204.232.122	A	occ-2-1845-1740.1.nflxso.net
138.204.232.122	A	occ-2-1845-1567.1.nflxso.net
138.204.232.122	A	occ-0-1845-185.1.nflxso.net
138.204.232.140	A	r1.sn-ovnn5gxqxcg-gxje.googlevideo.com
138.204.232.141	A	r2.sn-ovnn5gxqxcg-gxje.googlevideo.com
138.204.232.142	A	r3.sn-ovnn5gxqxcg-gxje.googlevideo.com
138.204.232.162	PTR	ns1.nossaredetelecom.com.br
138.204.232.162	A	matrixtelecom.com.br
138.204.232.163	PTR	ns2.nossaredetelecom.com.br
138.204.232.172	A	rev2.nossaredetelecom.com.br
138.204.232.172	A	rev1.nossaredetelecom.com.br
138.204.232.174	A	www.nossaredetelecom.com.br
138.204.232.178	PTR	static-178.nossaredetelecom.com.br
138.204.232.178	A	rev1.nossaredetelecom.com.br
138.204.232.179	PTR	static-179.nossaredetelecom.com.br
138.204.232.179	A	rev2.nossaredetelecom.com.br
138.204.234.3	PTR	static-3.nossaredetelecom.com.br
138.204.234.3	A	avlsilva.dlinkddns.com