Robtex

Up: 203.152.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.152.32.0/22
Down right: 203.152.36.0/22

IP	Type	Hostname
203.152.36.6	A	indsl36-6.pacific.net.th
203.152.36.15	A	mail.happytuk.co.th
203.152.36.18	PTR	indsl36-18.pacific.net.th
203.152.36.32	A+PTR	indsl36-32.pacific.net.th
203.152.36.36	A	indsl36-36.pacific.net.th
203.152.36.41	A	indsl36-41.pacific.net.th
203.152.36.43	A+PTR	indsl36-43.pacific.net.th
203.152.36.47	A	indsl36-47.pacific.net.th
203.152.36.55	A	indsl36-55.pacific.net.th
203.152.37.156	PTR	emlbangkok.eml.co.th
203.152.37.156	A	mail.eml.co.th
203.152.39.98	A	mail.rsh.co.th
203.152.39.98	A	rshthailand.com
203.152.39.126	PTR	gateway.takeda.co.th
203.152.39.175	PTR	mail.thedomebkk.com