Robtex

Up: 121.7.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 121.7.56.0/22
Down right: 121.7.60.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.7.56.37	A	bb121-7-56-37.singnet.com.sg
121.7.56.96	A+PTR	bb121-7-56-96.singnet.com.sg
121.7.56.96	A	conwayserver.com
121.7.56.96	A	kbraendli.com
121.7.56.113	A+PTR	bb121-7-56-113.singnet.com.sg
121.7.56.169	A+PTR	bb121-7-56-169.singnet.com.sg
121.7.56.226	PTR	bb121-7-56-226.singnet.com.sg
121.7.57.39	A	bb121-7-57-39.singnet.com.sg
121.7.57.72	PTR	bb121-7-57-72.singnet.com.sg
121.7.57.72	A	innotecsg.com
121.7.57.73	A	bb121-7-57-73.singnet.com.sg
121.7.57.102	A	bb121-7-57-102.singnet.com.sg
121.7.57.122	A+PTR	bb121-7-57-122.singnet.com.sg
121.7.58.18	A	bb121-7-58-18.singnet.com.sg
121.7.58.110	A	bb121-7-58-110.singnet.com.sg
121.7.58.137	PTR	bb121-7-58-137.singnet.com.sg
121.7.59.166	A	bb121-7-59-166.singnet.com.sg
121.7.60.245	A+PTR	bb121-7-60-245.singnet.com.sg
121.7.61.33	A	bb121-7-61-33.singnet.com.sg
121.7.61.85	A+PTR	bb121-7-61-85.singnet.com.sg
121.7.61.101	A+PTR	bb121-7-61-101.singnet.com.sg
121.7.61.233	A	cassia.sg
121.7.61.233	A	mail.cassia.sg
121.7.63.48	A	bb121-7-63-48.singnet.com.sg
121.7.63.228	A	bb121-7-63-228.singnet.com.sg
121.7.63.246	A	bb121-7-63-246.singnet.com.sg