Robtex

Up: 12.174.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 12.174.168.0/22
Down right: 12.174.172.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
12.174.168.34	PTR	ns1.aodev.net
12.174.168.34	PTR	ns1.aohosting.net
12.174.168.35	PTR	ns2.aodev.net
12.174.168.35	PTR	ns2.aohosting.net
12.174.168.35	A	ns2.aopn-na.com
12.174.168.36	PTR	mail.aohosting.net
12.174.168.36	A	smtprelay-us1.aohosting.net
12.174.168.36	A	mail.aodev.net
12.174.168.37	A	smtprelay-us2.aohosting.net
12.174.168.48	A	ns3.ext.origin-asp.com
12.174.168.51	A	ns3.ext.dsm-group.com
12.174.168.53	A	ns3.ext.origin-it.com
12.174.168.54	A	ns3.origin-services.com
12.174.168.69	A+PTR	ftp.feico.com
12.174.168.69	A+PTR	aspweb01.aohosting.net
12.174.168.104	A	www.fidelitypracticeadvantage.com
12.174.168.114	A+PTR	mail.edi.aohosting.net
12.174.168.114	PTR	us1actp1.edi.aohosting.net
12.174.168.124	A+PTR	mail.samples.aohosting.net
12.174.168.124	PTR	us1pgweb2.samples.aohosting.net
12.174.168.162	A	usmlsw1.aohosting.net
12.174.168.163	A	usmlsw2.aohosting.net
12.174.168.164	A	usmlsct1.aohosting.net
12.174.168.204	PTR	www.arizonamills.com
12.174.168.204	PTR	www.arundelmills.com
12.174.168.204	PTR	www.browardmall.com
12.174.169.12	PTR	gemslab.net
12.174.169.12	A+PTR	ns1.gemslab.net
12.174.169.12	A	arlrmt.ms-home.net
12.174.169.14	A	mail.stembol.com
12.174.169.14	A	unicoon.com
12.174.169.71	A+PTR	smtprelay-us3.us.atosorigin.com
12.174.169.72	A+PTR	smtprelay-us4.us.atosorigin.com
12.174.169.100	A+PTR	smtprelay-us1.aopn-na.com
12.174.169.110	A	smtprelay-us2.aopn-na.com
12.174.169.111	A	us1psec4.aopn-na.com
12.174.172.227	A	mail01.horizonlines.com
12.174.172.228	PTR	www.horizonlines.com
12.174.172.228	A	hlines.com
12.174.172.228	A	horizonservicesgroup.com
12.174.172.233	A	hrzlogistics.com
12.174.172.233	A	mail.horizon-logistics.com
12.174.172.233	A	horizon-logistics.com
12.174.172.237	PTR	legacy.horizonlines.com
12.174.172.237	PTR	mail.horizonlines.com