Robtex

Up: 220.247.246.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 220.247.247.0/25
Down right: 220.247.247.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
220.247.247.5	A+PTR	mail3.barberyn.lk
220.247.247.12	A+PTR	mails.lumala.lk
220.247.247.16	A+PTR	mail.sampath.org
220.247.247.16	A	sampath.org
220.247.247.27	PTR	mail.tcwlk.com
220.247.247.28	A+PTR	mail.westernpapersl.com
220.247.247.28	A+PTR	mail.wpisyndicatesl.com
220.247.247.28	A	mail.tapactrading.com
220.247.247.49	PTR	49.247.sta.bb.slt.lk
220.247.247.60	PTR	60.247.sta.bb.slt.lk
220.247.247.60	A+PTR	mail.slmatrix.com
220.247.247.68	A+PTR	mail2.rajagiriyatours.com
220.247.247.68	A	mail1.rajagiriyatours.com
220.247.247.80	PTR	80.247.sta.bb.slt.lk
220.247.247.92	PTR	92.247.sta.bb.slt.lk
220.247.247.101	PTR	101.247.sta.bb.slt.lk
220.247.247.131	A+PTR	mail.sit.lk
220.247.247.131	A	mail.smartgadgetshub.com
220.247.247.143	PTR	143.247.sta.bb.slt.lk
220.247.247.146	A+PTR	mail2.dmslanka.com
220.247.247.166	PTR	166.247.sta.bb.slt.lk
220.247.247.174	PTR	174.247.sta.bb.slt.lk
220.247.247.179	PTR	179.247.sta.bb.slt.lk
220.247.247.195	PTR	195.247.sta.bb.slt.lk
220.247.247.241	PTR	mail.dialtex.lk
220.247.247.247	A	mail.empiretradingagency.lk
220.247.247.254	PTR	mail.dgl.eureka.lk
220.247.247.254	A	dgl.eureka.lk