Robtex

Up: 216.138.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.138.240.0/23
Down right: 216.138.242.0/23

IP	Type	Hostname
216.138.240.118	PTR	cauchy.theorem.ca
216.138.240.211	PTR	ns2.cseven.net
216.138.240.237	A	www.cyberfax.cubaweb.cu
216.138.240.237	A	ns1.cubaweb.cu
216.138.240.238	A	ns2.cubaweb.cu
216.138.240.238	A	www.ulisestoirac.cubaweb.cu
216.138.241.72	PTR	mail.comtechcu.com
216.138.242.5	PTR	bitchcake.off.net
216.138.242.43	A	archon.wiznet.ca
216.138.242.67	PTR	spider.givex.com
216.138.242.82	PTR	www.givex.com
216.138.242.83	PTR	wwws.givex.com
216.138.242.87	PTR	forms.givex.com
216.138.242.139	A	secure.coupdepouce.com
216.138.242.150	PTR	gatekeeper.websynergy.ca
216.138.243.4	A	s-crp-relayhost.ae.ca
216.138.243.4	A	smtp.ae.ca
216.138.243.6	A	s-crp-lb-03.ae.ca