Robtex

Up: 165.21.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 165.21.128.0/18
Down right: 165.21.192.0/18

IP	Type	Hostname
165.21.132.99	A	ns1.singnet.com.sg
165.21.135.37	A	bb-165-21-135-37.singnet.com.sg
165.21.135.81	A	bb-165-21-135-81.singnet.com.sg
165.21.135.83	A	bb-165-21-135-83.singnet.com.sg
165.21.135.132	A	bb-165-21-135-132.singnet.com.sg
165.21.135.143	A	bb-165-21-135-143.singnet.com.sg
165.21.135.168	A	bb-165-21-135-168.singnet.com.sg
165.21.135.180	A	bb-165-21-135-180.singnet.com.sg
165.21.154.10	A	bbcache-10.singnet.com.sg
165.21.154.14	A	bbcache-14.singnet.com.sg
165.21.154.17	A	bbcache-17.singnet.com.sg
165.21.154.73	A	bbcache-73.singnet.com.sg
165.21.155.6	A	bbcache155-6.singnet.com.sg
165.21.155.8	A	bbcache155-8.singnet.com.sg
165.21.155.9	A	bbcache155-9.singnet.com.sg
165.21.155.14	A	bbcache155-14.singnet.com.sg
165.21.155.129	A	bbcache155-129.singnet.com.sg
165.21.155.134	A	bbcache155-134.singnet.com.sg
165.21.155.147	A	bbcache155-147.singnet.com.sg
165.21.155.150	A	bbcache155-150.singnet.com.sg
165.21.170.23	A	hs1514.singnet.com.sg
165.21.186.95	A	hs4385.singnet.com.sg
165.21.194.222	A	hs0209.singnet.com.sg
165.21.199.4	A	hs0713.singnet.com.sg
165.21.199.7	A	hs0716.singnet.com.sg
165.21.199.25	A	hs0734.singnet.com.sg
165.21.199.72	A	hs0781.singnet.com.sg
165.21.199.140	A	hs07149.singnet.com.sg
165.21.199.186	A	hs07195.singnet.com.sg
165.21.199.189	A	hs07198.singnet.com.sg
165.21.208.137	A	hs90127.singnet.com.sg
165.21.229.108	A	hs34108.singnet.com.sg
165.21.229.194	A	hs34194.singnet.com.sg
165.21.240.15	A	dns1.connectplus.com.sg
165.21.244.90	A	worldconference.com.sg
165.21.244.90	A	docshare.com.sg
165.21.245.2	A+PTR	ex.mail65.com.sg
165.21.245.3	PTR	ln.mail65.com.sg
165.21.245.7	A	www.mail65.com.sg
165.21.245.17	A	ssm.mail65.com.sg
165.21.245.18	A	smtp-gw.mail65.com.sg