Robtex

Up: 177.86.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 177.86.156.0/23
Down right: 177.86.158.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
177.86.156.0	PTR	177-86-156-0.netecom.net.br
177.86.156.2	PTR	177-86-156-2.dynamic.netecom.com.br
177.86.156.46	A+PTR	177-86-156-46.netecom.net.br
177.86.156.66	PTR	177-86-156-66.netecom.net.br
177.86.156.76	A+PTR	177-86-156-76.netecom.net.br
177.86.156.168	A+PTR	177-86-156-168.netecom.net.br
177.86.156.206	PTR	177-86-156-206.netecom.net.br
177.86.157.18	A+PTR	177-86-157-18.netecom.net.br
177.86.157.30	PTR	177-86-157-30.dynamic.netecom.com.br
177.86.157.53	PTR	177-86-157-53.dynamic.netecom.com.br
177.86.157.118	PTR	177-86-157-118.dynamic.netecom.com.br
177.86.157.138	A+PTR	www.intranetlogica.com.br
177.86.157.138	A	ns1.intranetlogica.com.br
177.86.157.138	A	ns2.intranetlogica.com.br
177.86.158.12	PTR	cache.google.com
177.86.158.12	A	r1---sn-oxujvhcg-nq0e.googlevideo.com
177.86.158.13	PTR	cache.google.com
177.86.158.13	A	r2---sn-oxujvhcg-nq0e.googlevideo.com
177.86.158.222	A+PTR	177-86-158-222.netecom.net.br
177.86.159.130	PTR	177-86-159-130.dynamic.netecom.com.br
177.86.159.130	A	occ-1-1923-1380.1.nflxso.net
177.86.159.130	A	occ-0-1923-1380.1.nflxso.net
177.86.159.190	A+PTR	177-86-159-190.netecom.net.br
177.86.159.251	PTR	177-86-159-251.netecom.net.br
177.86.159.252	PTR	177-86-159-252.netecom.net.br
177.86.159.253	A+PTR	177-86-159-253.netecom.net.br
177.86.159.253	A	dns1.netecom.net.br
177.86.159.253	A	ns1.netecom.net.br
177.86.159.254	A+PTR	177-86-159-254.netecom.net.br
177.86.159.255	PTR	177-86-159-255.netecom.net.br