Robtex

Up: 121.7.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 121.7.168.0/22
Down right: 121.7.172.0/22

IP	Type	Hostname
121.7.168.217	A+PTR	bb121-7-168-217.singnet.com.sg
121.7.169.47	A+PTR	bb121-7-169-47.singnet.com.sg
121.7.169.215	PTR	bb121-7-169-215.singnet.com.sg
121.7.170.137	PTR	bb121-7-170-137.singnet.com.sg
121.7.170.212	A+PTR	bb121-7-170-212.singnet.com.sg
121.7.170.229	A+PTR	bb121-7-170-229.singnet.com.sg
121.7.171.140	A	bb121-7-171-140.singnet.com.sg
121.7.172.42	A	angmohapproved.com
121.7.172.77	A	bb121-7-172-77.singnet.com.sg
121.7.173.18	A	bb121-7-173-18.singnet.com.sg
121.7.173.238	A	bb121-7-173-238.singnet.com.sg
121.7.173.240	A	bb121-7-173-240.singnet.com.sg
121.7.175.21	A+PTR	bb121-7-175-21.singnet.com.sg
121.7.175.169	A+PTR	bb121-7-175-169.singnet.com.sg
121.7.175.203	PTR	bb121-7-175-203.singnet.com.sg