Robtex

Up: 66.40.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 66.40.160.0/21
Down right: 66.40.168.0/21

IP	Type	Hostname
66.40.160.14	A	email.prizevenueonline.com
66.40.160.18	PTR	host18.maxim.net
66.40.160.21	A	broadcasthivcarib.org
66.40.160.72	A	dc2.devex.com
66.40.160.80	PTR	host80.maxim.net
66.40.160.247	A	rap-session.com
66.40.162.18	PTR	host18.maxim.net
66.40.162.35	PTR	host35.maxim.net
66.40.162.253	A	mail.vcbc.org
66.40.162.253	A	m1002.hostcentric.net
66.40.163.96	A	readers4u.com
66.40.163.96	A	mail.readers4u.com
66.40.163.214	A	draftshark.com
66.40.164.148	A	ihfonline.com
66.40.165.35	PTR	host35.maxim.net
66.40.165.80	PTR	host80.maxim.net
66.40.165.96	PTR	host96.maxim.net
66.40.166.80	PTR	host80.maxim.net
66.40.166.96	PTR	host96.maxim.net
66.40.167.1	PTR	host1.maxim.net
66.40.167.18	PTR	host18.maxim.net
66.40.167.80	PTR	host80.maxim.net
66.40.167.96	PTR	host96.maxim.net
66.40.167.206	A	lmates.com
66.40.167.213	A	discoverfood.com
66.40.167.227	PTR	gf55.com
66.40.168.18	PTR	host18.maxim.net
66.40.169.23	A	winnwell.com
66.40.170.18	PTR	host18.maxim.net
66.40.170.35	PTR	host35.maxim.net
66.40.170.96	PTR	host96.maxim.net
66.40.170.120	A	computermoney.com
66.40.170.156	A	economicnetworks.com
66.40.171.96	PTR	host96.maxim.net
66.40.171.176	PTR	mail.gfoa.net
66.40.172.1	PTR	host1.maxim.net
66.40.172.18	PTR	host18.maxim.net
66.40.172.80	PTR	host80.maxim.net
66.40.172.176	A+PTR	w2301.hostcentric.net
66.40.173.247	A	cinsy.com
66.40.173.247	A	*.cinsy.com