Robtex

Up: 177.37.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 177.37.208.0/21
Down right: 177.37.216.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
177.37.220.3	A+PTR	mx2.brisanet.com.br
177.37.220.3	A	email.brisanet.net.br
177.37.220.3	A	email.brisanet.com.br
177.37.220.12	PTR	brisa-177.37.220-12.brisanet.com.br
177.37.220.17	PTR	brisa-177.37.220-17.brisanet.com.br
177.37.220.17	A	dns-jzn.brisanet.net.br
177.37.220.17	A	ns3.brisanet.com.br
177.37.220.25	PTR	brisa-177.37.220-25.brisanet.com.br
177.37.220.25	A	brisanet.com.br
177.37.220.25	A	brisanet.net.br
177.37.220.26	PTR	brisa-177.37.220-26.brisanet.com.br
177.37.220.26	A	brisanet.com.br
177.37.220.26	A	brisanet.net.br
177.37.220.74	PTR	brisa-177.37.220-74.brisanet.com.br
177.37.220.74	A	centos.brisanet.com.br
177.37.220.74	A	epel.brisanet.com.br
177.37.220.92	A	www.brisanet.com.br
177.37.221.34	A	occ-0-1119-1567.1.nflxso.net
177.37.221.34	A	occ-1-1119-1380.1.nflxso.net
177.37.221.34	A	occ-2-1119-1380.1.nflxso.net
177.37.221.35	A	occ-0-1119-1567.1.nflxso.net
177.37.221.35	A	occ-1-1119-1380.1.nflxso.net
177.37.221.35	A	occ-2-1119-1380.1.nflxso.net
177.37.221.81	A	scontent.fjdo1-1.fna.fbcdn.net
177.37.221.82	A	video.fjdo1-1.fna.fbcdn.net
177.37.221.94	A	sonar.fjdo1-1.fna.fbcdn.net
177.37.221.94	A	z-1-external.fjdo1-1.fna.fbcdn.net
177.37.221.96	A	instagram.fjdo1-1.fna.fbcdn.net
177.37.221.97	A	media.fjdo1-1.fna.whatsapp.net
177.37.221.98	A	z-p3-scontent.fjdo1-1.fna.fbcdn.net
177.37.221.104	A	z-1-scontent.fjdo1-1.fna.fbcdn.net
177.37.221.209	A	scontent.fjdo1-2.fna.fbcdn.net
177.37.221.225	A	instagram.fjdo1-2.fna.fbcdn.net
177.37.221.226	A	media.fjdo1-2.fna.whatsapp.net
177.37.222.98	A	instagram.fjdo10-1.fna.fbcdn.net
177.37.222.160	A	instagram.fjdo10-2.fna.fbcdn.net