Robtex

Up: 216.19.78.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.19.79.0/25
Down right: 216.19.79.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.19.79.1	PTR	mx.nextwebhosting.com
216.19.79.1	A	elophone.ca
216.19.79.1	A	smtp1.nextwebhosting.com
216.19.79.4	A	nextwebhosting.com
216.19.79.4	A	elosoft.ca
216.19.79.4	A	thefuturecomputer.ca
216.19.79.5	A	canic.ca