Robtex

Up: 161.27.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 161.27.0.0/18
Down right: 161.27.64.0/18

IP	Type	Hostname
161.27.0.0	PTR	test-161-27-0-0.net.psmidc.com
161.27.0.2	PTR	test-161-27-0-2.net.psmidc.com
161.27.0.128	PTR	test-161-27-0-128.net.psmidc.com
161.27.0.130	PTR	test-161-27-0-130.net.psmidc.com
161.27.1.130	PTR	host-161-27-1-130.net.psmidc.com
161.27.2.3	PTR	host-161-27-2-3.net.psmidc.com
161.27.2.129	PTR	host-161-27-2-129.net.psmidc.com
161.27.3.131	PTR	host-161-27-3-131.net.psmidc.com
161.27.8.2	PTR	host-161-27-8-2.net.psmidc.com
161.27.8.130	PTR	host-161-27-8-130.net.psmidc.com
161.27.95.131	PTR	host-161-27-95-131.net.psmidc.com