Robtex

Up: 45.58.68.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 45.58.68.0/24
Down right: 45.58.69.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
45.58.69.1	A	dl-client94.dropbox.com
45.58.69.1	A	dl-client17.dropbox.com
45.58.69.1	A	dl-client113.dropbox.com
45.58.69.33	A	dl-client8.dropbox.com
45.58.69.33	A	edge-block-client-fallback.dropbox-dns.com
45.58.69.38	A	block-misc.g1.dropbox.com
45.58.69.65	A	dl-client86.dropbox.com
45.58.69.65	A	dl-client123.dropbox.com
45.58.69.65	A	dl-client55.dropbox.com
45.58.69.69	A	gslb-dl.dropboxusercontent.com
45.58.69.97	A	dl-client94.dropbox.com
45.58.69.97	A	dl-client17.dropbox.com
45.58.69.97	A	dl-client113.dropbox.com
45.58.69.101	A	gslb-dl.dropboxusercontent.com
45.58.69.101	A	block-www-sjc.dropbox-dns.com