Robtex

Up: 198.133.220.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 198.133.220.0/25
Down right: 198.133.220.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.133.220.0	A	realtimegarage.org
198.133.220.20	A	imap.tns.com
198.133.220.20	A	webgate.tns.com
198.133.220.20	A	ftp.realtimecare.net
198.133.220.30	A	webgate.tns.com
198.133.220.30	A	ftp.realtimecare.net
198.133.220.30	A	webgate.phlegon.com
198.133.220.41	A	jdubbstudio.com
198.133.220.41	A	wall-ca06-tns.realtimegarage.com