Robtex

Up: 64.233.168.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.233.168.0/25
Down right: 64.233.168.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.233.168.14	A+PTR	oj-in-f14.1e100.net
64.233.168.17	PTR	oj-in-f17.1e100.net
64.233.168.26	PTR	oj-in-f26.1e100.net
64.233.168.26	A	imageworks.com.s9b1.psmtp.com
64.233.168.26	A	onsemi.com.s8b1.psmtp.com
64.233.168.27	PTR	oj-in-f27.1e100.net
64.233.168.27	A	lmppro.com.s7b1.psmtp.com
64.233.168.27	A	mayerbrown.com.s7b2.psmtp.com
64.233.168.31	A+PTR	oj-in-f31.1e100.net
64.233.168.81	A+PTR	oj-in-f81.1e100.net
64.233.168.83	A+PTR	oj-in-f83.1e100.net
64.233.168.84	A+PTR	oj-in-f84.1e100.net
64.233.168.85	A+PTR	oj-in-f85.1e100.net
64.233.168.87	A+PTR	oj-in-f87.1e100.net
64.233.168.91	A+PTR	oj-in-f91.1e100.net
64.233.168.93	A+PTR	oj-in-f93.1e100.net
64.233.168.94	A+PTR	oj-in-f94.1e100.net
64.233.168.94	A	ikscali.dyndns.tv
64.233.168.95	A+PTR	oj-in-f95.1e100.net
64.233.168.97	A+PTR	oj-in-f97.1e100.net
64.233.168.99	A+PTR	oj-in-f99.1e100.net
64.233.168.100	A+PTR	oj-in-f100.1e100.net
64.233.168.101	A+PTR	oj-in-f101.1e100.net
64.233.168.102	A+PTR	oj-in-f102.1e100.net
64.233.168.103	A+PTR	oj-in-f103.1e100.net
64.233.168.104	A+PTR	oj-in-f104.1e100.net
64.233.168.105	A+PTR	oj-in-f105.1e100.net
64.233.168.106	A+PTR	oj-in-f106.1e100.net
64.233.168.108	A+PTR	oj-in-f108.1e100.net
64.233.168.109	A+PTR	oj-in-f109.1e100.net
64.233.168.113	A+PTR	oj-in-f113.1e100.net
64.233.168.115	A+PTR	oj-in-f115.1e100.net
64.233.168.116	A+PTR	oj-in-f116.1e100.net
64.233.168.117	A+PTR	oj-in-f117.1e100.net
64.233.168.121	A+PTR	oj-in-f121.1e100.net
64.233.168.121	A	radionovaesperanca.com.br
64.233.168.121	A	burlingtonschool.com
64.233.168.125	A+PTR	oj-in-f125.1e100.net
64.233.168.125	A	alt1.talk.l.google.com
64.233.168.128	A+PTR	oj-in-f128.1e100.net
64.233.168.128	A	gcs-us-00001.content-storage-download.googleapis.com
64.233.168.132	PTR	oj-in-f132.1e100.net
64.233.168.136	A+PTR	oj-in-f136.1e100.net
64.233.168.138	A+PTR	oj-in-f138.1e100.net
64.233.168.139	PTR	oj-in-f139.1e100.net
64.233.168.141	A+PTR	oj-in-f141.1e100.net
64.233.168.144	A+PTR	oj-in-f144.1e100.net
64.233.168.147	A+PTR	oj-in-f147.1e100.net
64.233.168.148	A+PTR	oj-in-f148.1e100.net
64.233.168.155	A+PTR	oj-in-f155.1e100.net
64.233.168.157	A	oj-in-f157.1e100.net
64.233.168.160	A	ixufu.com
64.233.168.163	A+PTR	oj-in-f163.1e100.net
64.233.168.181	A+PTR	oj-in-f181.1e100.net
64.233.168.188	A+PTR	oj-in-f188.1e100.net
64.233.168.189	A+PTR	oj-in-f189.1e100.net
64.233.168.190	A+PTR	oj-in-f190.1e100.net
64.233.168.192	A+PTR	oj-in-f192.1e100.net
64.233.168.198	A+PTR	oj-in-f198.1e100.net
64.233.168.200	A+PTR	oj-in-f200.1e100.net