Robtex

Up: 128.26.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 128.27.0.0/17
Down right: 128.27.128.0/17

IP	Type	Hostname
128.27.16.193	A+PTR	128-27-16-193f1.nar1.eonet.ne.jp
128.27.21.3	A+PTR	128-27-21-3f1.nar1.eonet.ne.jp
128.27.21.3	A	nekokan.dyndns.info
128.27.50.116	A+PTR	128-27-50-116f1.nar1.eonet.ne.jp
128.27.55.169	A+PTR	128-27-55-169f1.nar1.eonet.ne.jp
128.27.55.237	A+PTR	128-27-55-237f1.hyg1.eonet.ne.jp
128.27.55.237	A	jbackus.com
128.27.83.254	A+PTR	128-27-83-254f1.osk1.eonet.ne.jp
128.27.85.155	A+PTR	128-27-85-155f1.osk1.eonet.ne.jp
128.27.95.133	A+PTR	128-27-95-133f1.osk1.eonet.ne.jp
128.27.95.133	A	oasis-dog.com
128.27.254.200	A+PTR	128-27-254-200f1.nar1.eonet.ne.jp