Robtex

Up: 186.237.224.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 186.237.224.0/23
Down right: 186.237.226.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
186.237.224.6	A	ns1.net-rubi.com.br
186.237.224.6	A	radius.net-rubi.com.br
186.237.224.9	A+PTR	mail.net-rubi.com.br
186.237.224.9	A	ns1.net-rubi.com.br
186.237.224.9	A	ns1.rockx.com.br
186.237.224.10	PTR	public-dns1.net-rubi.com.br
186.237.224.11	PTR	dns-recursivo-02.net-rubi.com.br
186.237.224.12	A+PTR	ns2.net-rubi.com.br
186.237.224.12	A	pmparisi.com.br
186.237.224.12	A	falchi.com.br
186.237.224.16	PTR	186-237-224-16.net-rubi.com.br
186.237.224.50	PTR	ip-186-237-224.50.net-rubi.com.br
186.237.224.50	A	falchi.com.br
186.237.224.50	A	www.netrubifibra.com.br
186.237.224.51	PTR	ip-186-237-224.51.net-rubi.com.br
186.237.224.51	A	edc.com.br
186.237.224.52	PTR	ip-186-237-224.52.net-rubi.com.br
186.237.224.52	A	www.netrubifibra.com.br
186.237.224.52	A	www.net-rubi.com.br
186.237.224.62	PTR	186-237-224-62.net-rubi.com.br
186.237.224.62	A	castprf.com
186.237.224.209	PTR	186-237-224-209.fbcdn.net-rubi.com.br
186.237.224.209	A	scontent.fsjp4-1.fna.fbcdn.net
186.237.224.225	A	instagram.fsjp4-1.fna.fbcdn.net
186.237.224.244	PTR	ip-186-237-224-244.fb-cdn.net-rubi.com.br
186.237.225.26	PTR	ge1.ouro.net-rubi.com.br
186.237.225.85	PTR	ip-186-237-225.85.net-rubi.com.br
186.237.225.190	PTR	186-237-225-190.net-rubi.com.br
186.237.226.98	PTR	186-237-226-98.net-rubi.com.br
186.237.226.182	PTR	186-237-226-182.net-rubi.com.br
186.237.227.66	PTR	ip-186-237-227.66.net-rubi.com.br
186.237.227.74	PTR	ip-186-237-227.74.net-rubi.com.br
186.237.227.76	PTR	ip-186-237-227.76.net-rubi.com.br
186.237.227.232	PTR	ip-186-237-227.232.net-rubi.com.br