Robtex

Up: 182.16.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 182.16.140.0/23
Down right: 182.16.142.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
182.16.140.120	PTR	server1.1asia-ahl.com
182.16.140.120	A	ns2.1asia-ahl.com
182.16.140.132	PTR	server1.1asia-ahl.com
182.16.140.132	A	ns2.1asia-ahl.com
182.16.140.132	A	ns1.1asia-ahl.com
182.16.142.0	A+PTR	ldn-core-rtr01.1asiacom.net
182.16.142.9	PTR	if-0-7-0-1.core01.ldn-london.1asiacom.net
182.16.142.10	PTR	if-0-7-0-2.core01.ldn-london.1asiacom.net