Robtex

Up: 192.206.234.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.206.235.0/25
Down right: 192.206.235.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.206.235.33	PTR	nm-192-206-235-33.nationalmachinery.com
192.206.235.222	PTR	nm-192-206-235-222.nationalmachinery.com
192.206.235.222	A	mail.met-max.com
192.206.235.222	A	mail.nationalmachinery.com
192.206.235.255	PTR	nm-192-206-235-255.nationalmachinery.com