Robtex

Up: 213.31.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 213.31.0.0/18
Down right: 213.31.64.0/18

IP	Type	Hostname
213.31.11.9	A	mail.eziuk.com
213.31.11.9	A	mail2.ezi.net
213.31.11.10	A	mail.eziuk.com
213.31.11.70	A	ukgw.informagm.com
213.31.13.101	PTR	101.13.31.213.dyn.plus.net
213.31.24.196	PTR	196.24.31.213.dyn.plus.net
213.31.24.196	A	phillgriffith.com
213.31.32.188	PTR	188.32.31.213.dyn.plus.net
213.31.32.188	A	mail.instromet.com
213.31.33.106	A	mailhost.lhoist.com
213.31.33.159	A	palsngs159.us.infonet.com
213.31.33.163	A	mail.clarinol.com
213.31.33.165	A	palsngs165.us.infonet.com
213.31.33.175	A	palsngs175.us.infonet.com
213.31.34.100	A	mailsumt2.newellco.com
213.31.34.100	A	mail.irwin.dk
213.31.43.179	PTR	179.43.31.213.dyn.plus.net
213.31.55.128	A	mmcteh.net
213.31.67.22	PTR	22.67.31.213.dyn.plus.net
213.31.68.106	A	stricklandsweb.com
213.31.74.140	A	exc-demo.com
213.31.113.209	PTR	209.113.31.213.dyn.plus.net