Robtex

Up: 58.137.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 58.137.32.0/23
Down right: 58.137.34.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.137.32.2	PTR	mail.bsact.co.th
58.137.32.18	A+PTR	mail.bsact.co.th
58.137.32.27	A	s4s.bsact.co.th
58.137.32.72	A+PTR	mail.plt.co.th
58.137.32.78	A	plt.co.th
58.137.32.78	A	www.plt.co.th
58.137.32.122	A	le-mail01.l-and-e.com
58.137.32.123	A	le-mail02.l-and-e.com
58.137.32.124	A	mail.l-and-e.com
58.137.32.149	A+PTR	mailgw.siampharmaceutical.com
58.137.32.149	A	mail.siambheasach.com
58.137.32.149	A	mail.siampharmaceutical.com
58.137.32.175	A	mail.lat.co.th
58.137.32.176	A	mail3.lat.co.th
58.137.32.195	A	www.ap-con.com
58.137.32.196	A	ap-ess.com
58.137.32.196	A	webmail.bkkcitismart.com
58.137.32.199	A+PTR	mf.smartservice.co.th
58.137.32.200	A	smtp.ap-thai.com
58.137.32.201	A+PTR	mx.ap-thai.com
58.137.32.201	A	mail.ap-thai.com
58.137.32.201	A	mx.apthai.com
58.137.32.204	A	ap-crm.com
58.137.32.204	A	www.ap-crm.com
58.137.32.205	PTR	mail.ap-thai.com
58.137.32.205	A	mail.smartservice.co.th
58.137.32.205	A	smtp.smartservice.co.th
58.137.32.208	A+PTR	mf.bkkcitismart.com
58.137.32.214	A	ap-pda.com
58.137.32.222	A	mail.apsupplier.com
58.137.32.222	A	apsupplier.com
58.137.32.241	A	apintranet.com
58.137.32.241	A	www.apintranet.com
58.137.33.5	PTR	mx3.scblife.co.th
58.137.34.159	A	reverse-58-137-34-159.csloxinfo.com
58.137.34.163	A	ns3.isanidc.com
58.137.34.181	A	mail.tsscthai.com
58.137.34.197	PTR	pps01a.oltax.com
58.137.34.197	A+PTR	pps01.oltax.com
58.137.35.46	A+PTR	exchange.nforcesecure.com
58.137.35.46	A	zeus.nforcesecure.com
58.137.35.69	A	mail.mahajak.com
58.137.35.70	A	mahajak.co.th
58.137.35.70	A	www.mahajak.com
58.137.35.74	A	mail.mahajak.co.th
58.137.35.83	A	mail.beautygems.co.th
58.137.35.84	PTR	mail.bgmail.biz
58.137.35.98	PTR	reverse-58-137-35-98.csloxinfo.net
58.137.35.100	A	mitsui-soko.co.th
58.137.35.157	PTR	mailcas.patana.ac.th
58.137.35.157	A	bpsmail.patana.ac.th