Robtex

Up: 27.0.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 27.0.0.0/23
Down right: 27.0.2.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.0.0.1	A	07795626811.com
27.0.0.1	A	darinmatheny.com
27.0.0.1	A	scabsolution.com
27.0.1.84	A	lib.roland.co.jp
27.0.1.122	A	callback.cloudsearch.ap-northeast-1.amazonaws.com
27.0.1.214	A	lib.roland.co.jp
27.0.1.243	A	callback.cloudsearch.ap-northeast-1.amazonaws.com
27.0.2.83	A	literarylifebookstore.com
27.0.2.170	A	nrt-b-orca.amazon.com
27.0.2.170	A	nrt-orca-bak.amazon.com
27.0.2.209	A	callback.cloudsearch.ap-northeast-1.amazonaws.com
27.0.2.244	A	kms.ap-northeast-1.amazonaws.com
27.0.3.166	A	nrt-orca-bak.amazon.com
27.0.3.166	A	vpn.ivpn.amazon-corp.com
27.0.3.166	A	nrt-a-orca.amazon.com