Robtex

Up: 207.65.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 207.65.64.0/22
Down right: 207.65.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
207.65.64.2	PTR	kruse2.krusecpas.com
207.65.64.27	PTR	kruse27.krusecpas.com
207.65.64.34	PTR	kruse34.krusecpas.com
207.65.64.40	PTR	kruse40.krusecpas.com
207.65.64.51	PTR	kruse51.krusecpas.com
207.65.64.57	PTR	host57-64-65-207.isdn.net
207.65.64.72	PTR	kruse72.krusecpas.com
207.65.64.73	PTR	kruse73.krusecpas.com
207.65.64.81	PTR	kruse81.krusecpas.com
207.65.64.89	PTR	kruse89.krusecpas.com
207.65.64.112	PTR	kruse112.krusecpas.com
207.65.64.152	PTR	kruse152.krusecpas.com
207.65.64.153	PTR	kruse153.krusecpas.com
207.65.64.161	PTR	kruse161.krusecpas.com
207.65.64.176	PTR	kruse176.krusecpas.com
207.65.64.184	PTR	kruse184.krusecpas.com
207.65.64.192	PTR	kruse192.krusecpas.com
207.65.64.195	PTR	kruse195.krusecpas.com
207.65.64.208	PTR	kruse208.krusecpas.com
207.65.64.209	PTR	kruse209.krusecpas.com
207.65.64.227	PTR	kruse227.krusecpas.com
207.65.64.233	PTR	kruse233.krusecpas.com
207.65.64.240	PTR	kruse240.krusecpas.com
207.65.64.251	PTR	kruse251.krusecpas.com
207.65.70.2	PTR	cr1.nrep.nxcorp.net
207.65.70.7	A	nrepnas02.isdn.net
207.65.70.7	A	gw02-bna.isdn.net
207.65.70.10	A+PTR	rtr01-mem-ws.isdn.net
207.65.70.11	PTR	host11-70-65-207.isdn.net
207.65.70.17	PTR	host17-70-65-207.isdn.net
207.65.70.19	PTR	host19-70-65-207.isdn.net
207.65.70.34	A	host34.isdn.net
207.65.70.41	PTR	host41-70-65-207.toptiersystems.com
207.65.70.42	PTR	host42-70-65-207.toptiersystems.com
207.65.70.57	PTR	host57-70-65-207.isdn.net
207.65.70.59	PTR	host59-70-65-207.isdn.net
207.65.70.80	PTR	host80-70-65-207.isdn.net
207.65.70.82	A	notes1.unipres.com
207.65.70.88	PTR	host88-70-65-207.isdn.net
207.65.70.97	PTR	host97-70-65-207.isdn.net
207.65.70.98	PTR	host98-70-65-207.isdn.net
207.65.70.105	A+PTR	gaia.nrep.nxcorp.net
207.65.70.106	A+PTR	gyges.nrep.nxcorp.net
207.65.70.113	PTR	host113-70-65-207.isdn.net
207.65.70.120	PTR	host120-70-65-207.isdn.net
207.65.70.123	PTR	host123-70-65-207.isdn.net
207.65.70.139	PTR	host139-70-65-207.isdn.net
207.65.70.144	PTR	host144-70-65-207.isdn.net
207.65.70.146	PTR	host146-70-65-207.isdn.net
207.65.70.153	PTR	host153-70-65-207.isdn.net
207.65.70.161	PTR	gw.unvlt.com
207.65.70.163	PTR	host163-70-65-207.unvlt.com
207.65.70.168	PTR	host168-70-65-207.unvlt.com
207.65.70.168	A	ultsmtp01.universalballast.com
207.65.70.178	PTR	host178-70-65-207.unvlt.com
207.65.70.178	A	mail.unvlt.com
207.65.70.179	PTR	host179-70-65-207.unvlt.com
207.65.70.182	A	legacy.unvlt.com
207.65.70.185	PTR	host185-70-65-207.unvlt.com
207.65.70.185	A	ultsmtp01.universalballast.com
207.65.70.185	A	unvlt.biz
207.65.70.193	A+PTR	host193-70.65.207.isdn.net
207.65.70.194	PTR	host194-70.65.207.isdn.net
207.65.70.200	PTR	host200-70-65-207.isdn.net
207.65.70.208	PTR	host208-70-65-207.isdn.net
207.65.70.217	PTR	host217-70-65-207.isdn.net
207.65.70.227	PTR	mail.resourcelabel.com
207.65.70.232	PTR	host232-70-65-207.isdn.net
207.65.70.233	PTR	host233-70-65-207.isdn.net
207.65.70.234	PTR	host234-70-65-207.isdn.net
207.65.70.240	PTR	host240-70-65-207.isdn.net
207.65.70.250	PTR	host250-70-65-207.isdn.net
207.65.70.251	PTR	host251-70-65-207.isdn.net
207.65.71.194	A	smartfilter.isdn.net
207.65.71.218	PTR	host218-71-65-207.isdn.net
207.65.71.218	A	cache.isdn.net
207.65.71.218	A	cache01.isdn.net
207.65.71.220	A	bess.isdn.net