Robtex

Up: 202.140.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 202.140.64.0/21
Down right: 202.140.72.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
202.140.64.0	PTR	m202-140-64-0.ismart.net
202.140.64.143	A	mail02.kissco.com
202.140.64.143	A	mail02.loopmein.hk
202.140.64.143	A	mail02.smartone.com
202.140.64.144	A+PTR	mail02.smartone.com
202.140.64.144	A	mail02.kissco.com
202.140.64.144	A	mail02.loopmein.hk
202.140.65.113	PTR	m202-140-65-113.ismart.net
202.140.65.114	PTR	m202-140-65-114.ismart.net
202.140.65.129	PTR	m202-140-65-129.ismart.net
202.140.65.192	PTR	m202-140-65-192.ismart.net
202.140.65.194	PTR	m202-140-65-194.ismart.net
202.140.66.17	PTR	m202-140-66-17.ismart.net
202.140.66.48	PTR	m202-140-66-48.ismart.net
202.140.67.51	PTR	m202-140-67-51.ismart.net
202.140.67.82	PTR	m202-140-67-82.ismart.net
202.140.70.112	PTR	m202-140-70-112.ismart.net
202.140.70.209	PTR	m202-140-70-209.ismart.net
202.140.71.1	PTR	m202-140-71-1.ismart.net
202.140.71.17	PTR	m202-140-71-17.ismart.net
202.140.71.83	PTR	m202-140-71-83.ismart.net
202.140.71.178	PTR	m202-140-71-178.ismart.net
202.140.71.193	PTR	m202-140-71-193.ismart.net
202.140.72.12	A	bj.gotdns.com
202.140.72.19	A	mail.thehealingkingdom.com
202.140.72.32	PTR	m202-140-72-32.ismart.net
202.140.72.33	PTR	m202-140-72-33.ismart.net
202.140.72.97	PTR	m202-140-72-97.ismart.net
202.140.73.0	PTR	m202-140-73-0.ismart.net
202.140.73.28	A	aonsip.smartone.com
202.140.73.99	PTR	m202-140-73-99.ismart.net
202.140.73.110	A	sonicpoint.hk
202.140.73.110	A	ip73.com
202.140.73.110	A	www.ip73.com
202.140.73.128	PTR	m202-140-73-128.ismart.net
202.140.73.146	PTR	m202-140-73-146.ismart.net
202.140.74.3	PTR	m202-140-74-3.ismart.net
202.140.74.49	PTR	m202-140-74-49.ismart.net
202.140.74.58	A	smtppreorderncc.smartone.com
202.140.74.59	A	smtppreorderncc.smartone.com
202.140.74.60	A	smtppreorderncc.smartone.com
202.140.74.62	A	smtppreorderncc.smartone.com
202.140.74.63	A	smtppreorderncc.smartone.com
202.140.74.64	A	smtppreorderncc.smartone.com
202.140.74.92	A	ebillsmtp.smartone.com
202.140.74.93	A	ebillsmtp.smartone.com
202.140.74.145	PTR	m202-140-74-145.ismart.net
202.140.74.181	A	mailisp.smartone.com.hk
202.140.74.181	A	ehksmtp.ismart.net
202.140.74.194	PTR	m202-140-74-194.ismart.net
202.140.74.243	PTR	m202-140-74-243.ismart.net
202.140.75.51	PTR	m202-140-75-51.ismart.net
202.140.75.130	PTR	m202-140-75-130.ismart.net
202.140.75.145	PTR	m202-140-75-145.ismart.net
202.140.75.192	PTR	m202-140-75-192.ismart.net
202.140.75.243	PTR	m202-140-75-243.ismart.net
202.140.76.51	A+PTR	sn-ncc-dns01.ismart.net
202.140.76.51	A	smtp2.ismart.net
202.140.76.147	PTR	m202-140-76-147.ismart.net
202.140.76.164	A	smtp.smartone-vodafone.com
202.140.76.164	A	smtpbbmailout.smartone-vodafone.com
202.140.76.164	A	smtp.smartone.com.hk
202.140.76.224	PTR	m202-140-76-224.ismart.net
202.140.77.17	PTR	m202-140-77-17.ismart.net
202.140.77.80	PTR	m202-140-77-80.ismart.net
202.140.77.112	PTR	m202-140-77-112.ismart.net
202.140.77.113	PTR	m202-140-77-113.ismart.net
202.140.77.179	PTR	m202-140-77-179.ismart.net
202.140.78.135	A	sn-ncc-dns02.ismart.net
202.140.78.211	PTR	m202-140-78-211.ismart.net