Robtex

Up: 58.185.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 58.185.196.0/23
Down right: 58.185.198.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.185.196.82	A	ptbm-proxy.bankmandiri.com.sg
58.185.196.129	A	info-labtest.com
58.185.196.129	A	jesuit.org.sg
58.185.196.129	A	www.jesuit.org.sg
58.185.196.130	A	infolab-uat.com
58.185.196.133	A	mail.info-lab.com
58.185.196.237	PTR	webmail.pdmdesign.com
58.185.196.242	A+PTR	webmail.sh-cogent.com.sg
58.185.196.242	A	mail.sh-cogent.com.sg
58.185.197.57	A	mail.sterlinglaw.com.sg
58.185.197.57	A	exchange.sterlinglaw.com.sg
58.185.197.201	A	mail.jobscv.info
58.185.197.246	A	umsingapore.com
58.185.197.246	A	mail.ambe.com.sg
58.185.197.246	A	webmail.ambe.com.sg
58.185.198.18	A+PTR	mail.yak.com.sg
58.185.198.18	A	yak.com.sg
58.185.198.100	A+PTR	gliderolsg01.gliderol.com.sg
58.185.198.100	A+PTR	gliderolsg02.gliderol.com.sg
58.185.198.100	A	mail.gliderol.com.sg
58.185.198.218	A+PTR	mail.aalst-chocolate.com.sg
58.185.198.218	A	mail.aalstpatissier.com
58.185.199.57	A	mail.mazak.sg
58.185.199.58	A	mazak.sg
58.185.199.106	A	mail.bizlink-lighting.com.sg
58.185.199.108	A+PTR	webmail.bizlink-lighting.com.sg
58.185.199.118	A	www.nus-cme.org.sg
58.185.199.190	A	secmx.sysdgn.com.sg
58.185.199.190	A	sdcloud.sysdgn.com.sg
58.185.199.195	A	mail.accordprinting.sg
58.185.199.195	A	mail.accordprinting.com.sg
58.185.199.195	A	mail.accordprinting.info
58.185.199.232	A	smtp2.hiaphoe.com
58.185.199.232	A	smtp2.dsp.net.ph
58.185.199.233	A	nex-wave08.com
58.185.199.252	A	sck.com.sg
58.185.199.253	A+PTR	mx.sck.com.sg
58.185.199.254	A+PTR	mail.sck.com.sg
58.185.199.254	A	shanghaichongkee.com