Robtex

Up: 54.231.253.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 54.231.253.0/26
Down right: 54.231.253.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
54.231.253.0	PTR	s3-sa-east-1.amazonaws.com
54.231.253.1	PTR	s3-sa-east-1.amazonaws.com
54.231.253.4	PTR	s3-website-sa-east-1.amazonaws.com
54.231.253.4	A	maisprofessor.com
54.231.253.4	A	puntoxsender.com
54.231.253.8	PTR	s3-sa-east-1.amazonaws.com
54.231.253.9	PTR	s3-sa-east-1.amazonaws.com
54.231.253.12	PTR	s3-website-sa-east-1.amazonaws.com
54.231.253.12	A	maisprofessor.com
54.231.253.12	A	puntoxsender.com
54.231.253.16	PTR	s3-sa-east-1.amazonaws.com
54.231.253.17	PTR	s3-sa-east-1-r-w.amazonaws.com
54.231.253.20	PTR	s3-website-sa-east-1.amazonaws.com
54.231.253.20	A	mail.apontaofertas.com.br
54.231.253.20	A	campoexpandido.com
54.231.253.21	A	workshare-platform-sao-paulo.s3.amazonaws.com
54.231.253.67	A	maisprofessor.com
54.231.253.67	A	doctorsim.com.ar
54.231.253.67	A	donadinda.com
54.231.253.69	A	workshare-platform-sao-paulo.s3.amazonaws.com
54.231.253.70	PTR	s3-sa-east-1.amazonaws.com
54.231.253.71	A	www.imobiliariacasagrande.com.br
54.231.253.71	A	concursooperaprima.com.br
54.231.253.71	A	bahia247.com.br
54.231.253.73	A	workshare-platform-sao-paulo.s3.amazonaws.com
54.231.253.75	PTR	s3-website-sa-east-1.amazonaws.com
54.231.253.75	A	maisprofessor.com
54.231.253.75	A	puntoxsender.com
54.231.253.77	PTR	s3-sa-east-1-w.amazonaws.com
54.231.253.77	A	workshare-platform-sao-paulo.s3.amazonaws.com
54.231.253.78	PTR	s3-sa-east-1.amazonaws.com
54.231.253.79	PTR	s3-website-sa-east-1.amazonaws.com
54.231.253.79	A	maisprofessor.com
54.231.253.79	A	www.imobiliariacasagrande.com.br
54.231.253.83	A	puntoxsender.com
54.231.253.83	A	www.projetosgratis.com.br
54.231.253.83	A	www.imobiliariacasagrande.com.br
54.231.253.85	A	workshare-platform-sao-paulo.s3.amazonaws.com
54.231.253.87	PTR	s3-website-sa-east-1.amazonaws.com
54.231.253.87	A	helbertm.com
54.231.253.87	A	doctorsim.com.ar