Robtex

Up: 143.47.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 143.47.192.0/19
Down right: 143.47.224.0/19

IP	Type	Hostname
143.47.193.163	A+PTR	lclrv3991.oracle.com
143.47.193.164	A+PTR	lclrv3992.oracle.com
143.47.193.164	A	lclsmtp03.oracle.com
143.47.193.165	A+PTR	lclrv3993.oracle.com
143.47.193.169	PTR	lclrp3980.oracle.com
143.47.194.14	A+PTR	idmconsole.em1.cloud.oracle.com
143.47.194.16	A+PTR	login-tmp.em1.oraclecloud.com
143.47.194.52	A	admin-llfsn9xuhf.oracleoutsourcing.com
143.47.194.117	A	admin-llfsn9xuef.oracleoutsourcing.com
143.47.194.124	A	fs-llfsn9xvaf.oracleoutsourcing.com
143.47.194.175	A	login-llfsn9xvlf.oracleoutsourcing.com
143.47.194.182	A	admin-llfsn9xvmf.oracleoutsourcing.com
143.47.194.187	A	admin-llfsn9xvnf.oracleoutsourcing.com
143.47.194.195	A+PTR	login-llfsn9xvpf.oracleoutsourcing.com
143.47.194.247	A	admin-llfsn9xuyf.oracleoutsourcing.com
143.47.195.73	A	admin-llfsn9xwff.oracleoutsourcing.com
143.47.195.88	A	admin-llfsn9xwif.oracleoutsourcing.com
143.47.195.96	A	login-llfsn9xwkf.oracleoutsourcing.com
143.47.195.123	A	admin-llfsn9xwpf.oracleoutsourcing.com
143.47.195.150	A	origin-fs-llfsn9xwvf.oracleoutsourcing.com
143.47.195.168	A	admin-llfsn9xwyf.oracleoutsourcing.com
143.47.195.188	A	admin-llfsn9xxcf.oracleoutsourcing.com
143.47.195.193	A+PTR	admin-llfsn9xxdf.oracleoutsourcing.com
143.47.195.198	A+PTR	admin-llfsn9xxef.oracleoutsourcing.com
143.47.195.213	A	admin-llfsn9xxhf.oracleoutsourcing.com
143.47.196.11	A+PTR	origin-fs-llfsn9xxnf.oracleoutsourcing.com
143.47.196.29	A	admin-llfsn9xxqf.oracleoutsourcing.com
143.47.196.47	A	login-llfsn9xxuf.oracleoutsourcing.com
143.47.196.167	A	origin-dcs.oraclecloud.com
143.47.197.104	PTR	fs-llfsn9xbal.oracleoutsourcing.com
143.47.197.175	A+PTR	fa0-login-em1.oracleoutsourcing.com
143.47.197.175	A	login-llfsn9xuxf.oracleoutsourcing.com