Robtex

Up: 203.148.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.148.208.0/23
Down right: 203.148.210.0/23

IP	Type	Hostname
203.148.210.106	PTR	static-ip.anet.net.th
203.148.210.130	PTR	mfec-anet.anet.net.th
203.148.211.9	PTR	static-ip.anet.net.th
203.148.211.36	PTR	static-ip.anet.net.th
203.148.211.48	PTR	static-ip.anet.net.th
203.148.211.52	PTR	static-ip.anet.net.th
203.148.211.58	PTR	static-ip.anet.net.th
203.148.211.73	PTR	static-ip.anet.net.th
203.148.211.86	PTR	static-ip.anet.net.th
203.148.211.103	PTR	static-ip.anet.net.th
203.148.211.107	PTR	static-ip.anet.net.th
203.148.211.123	PTR	static-ip.anet.net.th
203.148.211.130	PTR	static-ip.anet.net.th
203.148.211.135	PTR	static-ip.anet.net.th