Robtex

Up: 177.128.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 177.128.220.0/23
Down right: 177.128.222.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
177.128.220.126	A+PTR	177-128-220-126.ip.enteriw.com.br
177.128.220.186	A+PTR	177-128-220-186.ip.enteriw.com.br
177.128.220.202	PTR	177-128-220-202.ip.enteriw.com.br
177.128.223.17	A+PTR	177-128-223-17.ip.enteriw.com.br
177.128.223.17	A	scontent.fjdo4-1.fna.fbcdn.net
177.128.223.18	A+PTR	177-128-223-18.ip.enteriw.com.br
177.128.223.18	A	video.fjdo4-1.fna.fbcdn.net
177.128.223.32	A+PTR	177-128-223-32.ip.enteriw.com.br
177.128.223.32	A	z-p3-scontent.fjdo4-1.fna.fbcdn.net
177.128.223.33	A+PTR	177-128-223-33.ip.enteriw.com.br
177.128.223.33	A	instagram.fjdo4-1.fna.fbcdn.net
177.128.223.34	PTR	177-128-223-34.ip.enteriw.com.br
177.128.223.142	PTR	177-128-223-142.ip.enteriw.com.br
177.128.223.142	A	occ-2-2122-1567.1.nflxso.net
177.128.223.142	A	occ-0-2122-1801.1.nflxso.net
177.128.223.204	PTR	cache.google.com
177.128.223.204	A	r1---sn-xouxgpf-wqve.googlevideo.com
177.128.223.204	A	r1.sn-xouxgpf-wqve.gvt1.com
177.128.223.205	PTR	cache.google.com
177.128.223.205	A	r2---sn-xouxgpf-wqve.googlevideo.com
177.128.223.206	PTR	cache.google.com