Robtex

Up: 58.185.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 58.185.64.0/22
Down right: 58.185.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.185.64.125	A	pop3.sasw.org.sg
58.185.64.125	A	sasw.org.sg
58.185.64.217	A	*.pay2home.com
58.185.64.218	A	www.ec.sg
58.185.64.218	A	ec.sg
58.185.64.218	A	newproperty.sg
58.185.65.84	A	unibizsoft.com
58.185.65.84	A	mail.unibizsoft.com
58.185.66.51	A	mail.windhoffsg.com
58.185.66.164	A+PTR	mail.key-editions.com
58.185.66.164	A	mx.keyeditions.com
58.185.66.205	A	mail.dartcbm.com
58.185.67.181	A+PTR	mail.mgimenon.com
58.185.67.181	A	mail.mgialliance.sg
58.185.67.181	A	mail.ipconsultpl.com
58.185.68.4	A	mx.sus.com.sg
58.185.68.4	A	sus.com.sg
58.185.68.92	A	wisecoin.org
58.185.68.178	A+PTR	hspmail.hdkhsp.com.sg
58.185.68.178	A	adm.hdkhsp.com.sg
58.185.68.178	A	hdkfw.hdkhsp.com.sg
58.185.68.182	A	www.hdkhsp.com.sg
58.185.68.241	A	mail.amardeepfabrics.com
58.185.69.67	A+PTR	mail.nol-tecasia.com.sg
58.185.69.202	A	b2c.grassland.com.sg
58.185.69.203	A	supernice.com.sg
58.185.69.203	A	grasslandwebservice.com
58.185.71.19	A	smtp.pstmanagement.com
58.185.71.39	A	mail.alfax.com.sg
58.185.71.83	A+PTR	remote.quadrep.com.sg
58.185.71.83	A	quadrep.com.sg
58.185.71.131	PTR	mail.cougarpaint.com
58.185.71.131	A+PTR	mail.natcool.com
58.185.71.131	PTR	mail.naturalcool.com.sg
58.185.71.146	A+PTR	mail.charleskeith.com
58.185.71.146	A+PTR	mx1.charleskeith.com
58.185.71.146	A+PTR	mail.pedroshoes.com
58.185.71.156	A+PTR	mail.charleskeith.com
58.185.71.156	A+PTR	mx2.charleskeith.com
58.185.71.156	A	mail.charleskeith.co.jp