Robtex

Up: 216.249.42.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.249.42.0/25
Down right: 216.249.42.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.249.42.57	A+PTR	mail.tokiomillennium.com
216.249.42.57	A	mail.tokiosolution.com
216.249.42.57	A	mail.shimare.com
216.249.42.116	PTR	216.249.42.116.ppp.northrock.bm
216.249.42.116	A	mail.swissmarine.bm
216.249.42.214	A+PTR	216.249.42.214.ppp.northrock.bm
216.249.42.234	PTR	mail.telecom.bm
216.249.42.234	A	mail.renaviation.com
216.249.42.234	A	server1.faries.bm
216.249.42.238	A+PTR	216.249.42.238.ppp.northrock.bm
216.249.42.253	A+PTR	mail.gazette.bm
216.249.42.253	A	mail2.royalgazette.bm
216.249.42.253	A	mail.royalgazette.bm