Robtex

Up: 58.185.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 58.185.52.0/23
Down right: 58.185.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.185.52.17	A	www.cnt.com.sg
58.185.52.17	A	justattach.com
58.185.52.17	A	oily101.com
58.185.52.46	A	smtp.esplanade.com
58.185.52.46	A	rd1.esplanade.com
58.185.53.23	A	ns2.issgroup.com.au
58.185.53.23	A	ns2.isspl.com.au
58.185.53.117	A	mail.unixsolve.com
58.185.53.193	A	globe3.tomoe.com.sg
58.185.53.193	A	web.microsoftion.com
58.185.54.83	A	mail.national.sg
58.185.54.83	A	mail.ssl.sg
58.185.54.88	A	brightmail.national.sg
58.185.54.98	PTR	sts.sg
58.185.54.145	A	mail.icdlap.com
58.185.54.181	PTR	bcsgcs001.bilcare.com
58.185.54.217	A	interfoood.com
58.185.55.4	PTR	email.qsadvertising.com.sg
58.185.55.4	A	email.qs.sg
58.185.55.10	A+PTR	mail.qs.sg
58.185.55.10	A	mail.qsprint.com.sg
58.185.55.18	A	vaniah.com
58.185.55.114	A	taksg-exchg-svr.tak.sg