Robtex

Up: 116.15.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 116.15.48.0/21
Down right: 116.15.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
116.15.48.154	PTR	bb116-15-48-154.singnet.com.sg
116.15.49.96	A+PTR	bb116-15-49-96.singnet.com.sg
116.15.50.42	PTR	bb116-15-50-42.singnet.com.sg
116.15.50.160	A	bb116-15-50-160.singnet.com.sg
116.15.50.188	A+PTR	bb116-15-50-188.singnet.com.sg
116.15.50.208	PTR	bb116-15-50-208.singnet.com.sg
116.15.50.211	PTR	bb116-15-50-211.singnet.com.sg
116.15.51.74	A+PTR	bb116-15-51-74.singnet.com.sg
116.15.51.131	A	youlearnsg.com
116.15.51.131	A	learntitude.com
116.15.51.131	A	isgoffice.com
116.15.51.246	A+PTR	bb116-15-51-246.singnet.com.sg
116.15.52.213	PTR	bb116-15-52-213.singnet.com.sg
116.15.53.167	A+PTR	bb116-15-53-167.singnet.com.sg
116.15.53.216	A+PTR	bb116-15-53-216.singnet.com.sg
116.15.54.8	PTR	bb116-15-54-8.singnet.com.sg
116.15.54.9	A+PTR	bb116-15-54-9.singnet.com.sg
116.15.54.43	A+PTR	bb116-15-54-43.singnet.com.sg
116.15.54.182	PTR	bb116-15-54-182.singnet.com.sg
116.15.54.243	PTR	bb116-15-54-243.singnet.com.sg
116.15.56.76	A+PTR	bb116-15-56-76.singnet.com.sg
116.15.56.195	PTR	bb116-15-56-195.singnet.com.sg
116.15.56.234	A	bb116-15-56-234.singnet.com.sg
116.15.57.224	A+PTR	bb116-15-57-224.singnet.com.sg
116.15.58.3	A	bb116-15-58-3.singnet.com.sg
116.15.58.67	A+PTR	bb116-15-58-67.singnet.com.sg
116.15.58.70	A	thoven.com
116.15.59.123	A	bb116-15-59-123.singnet.com.sg
116.15.59.201	A	bb116-15-59-201.singnet.com.sg
116.15.60.83	A+PTR	bb116-15-60-83.singnet.com.sg
116.15.61.124	PTR	bb116-15-61-124.singnet.com.sg
116.15.62.57	PTR	bb116-15-62-57.singnet.com.sg
116.15.62.119	A	bb116-15-62-119.singnet.com.sg
116.15.62.154	A+PTR	bb116-15-62-154.singnet.com.sg
116.15.62.214	A+PTR	bb116-15-62-214.singnet.com.sg