Robtex

Up: 58.137.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 58.137.88.0/23
Down right: 58.137.90.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.137.88.35	A	office.letussea.com
58.137.88.134	A+PTR	mail.mikasa.co.th
58.137.88.134	A	mikasa.co.th
58.137.89.3	A+PTR	mail.sewt.co.th
58.137.89.3	A	pop3.sewt.co.th
58.137.89.4	PTR	legacy.sewt.co.th
58.137.89.4	A	webmail.sewt.co.th
58.137.89.6	A	legacy.sewt.co.th
58.137.89.81	A	dbsglobal.meiko.co.th
58.137.89.82	A	meikoasia.com
58.137.89.92	A+PTR	mail.komatsuseiki.co.th
58.137.89.147	A	mailgw3.uobam.co.th
58.137.90.82	A	ns2.muthimaya.com
58.137.90.82	A	ns2.kirimaya.com
58.137.90.82	A	ns2.tenfacehotel.com