Robtex

Up: 61.135.168.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 61.135.168.0/24
Down right: 61.135.169.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.135.168.7	PTR	baiduspider-ad-61-135-168-7.crawl.baidu.com
61.135.168.33	A+PTR	baiduspider-61-135-168-33.crawl.baidu.com
61.135.168.37	A+PTR	baiduspider-61-135-168-37.crawl.baidu.com
61.135.168.38	A+PTR	baiduspider-61-135-168-38.crawl.baidu.com
61.135.168.41	A+PTR	baiduspider-61-135-168-41.crawl.baidu.com
61.135.168.42	A+PTR	baiduspider-61-135-168-42.crawl.baidu.com
61.135.168.48	A+PTR	baiduspider-61-135-168-48.crawl.baidu.com
61.135.168.55	A	mx55.baidu.com
61.135.168.58	A+PTR	mx58.baidu.com
61.135.168.59	A	mx59.baidu.com
61.135.168.60	A+PTR	mx60.baidu.com
61.135.168.132	PTR	mx132-tc.baidu.com
61.135.168.136	PTR	mx136-tc.baidu.com
61.135.168.137	A	mx137-tc.baidu.com
61.135.168.139	A	mx139-tc.baidu.com
61.135.169.1	PTR	jupengfei.sys.baidu.com
61.135.169.105	A	efo8.com
61.135.169.105	A	egui.net
61.135.169.105	A	www.ixuetang.com
61.135.169.109	A	gst1.a.shifen.com
61.135.169.109	A	gst1.baidu.com
61.135.169.110	A	gst0.baidu.com
61.135.169.110	A	gst0.a.shifen.com
61.135.169.112	A	hit.baidu.com
61.135.169.112	A	jform.baidu.com
61.135.169.112	A	xinghe.pae.baidu.com
61.135.169.115	A	515725.com
61.135.169.118	A	app.dict.a.shifen.com
61.135.169.121	A	zhenghaimin.com
61.135.169.121	A	dazongz.com
61.135.169.121	A	fox-baton.com
61.135.169.122	A	qianxun.a.shifen.com
61.135.169.122	A	qianxun.baidu.com
61.135.169.125	A	www.w-www.cnmqw.com
61.135.169.125	A	multi-www.cnmqw.com
61.135.169.125	A	ker.net.cn