Robtex

Up: 115.66.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 115.66.32.0/20
Down right: 115.66.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.66.33.1	PTR	ae1-510.shiraz.singnet.com.sg
115.66.33.5	A	bb115-66-33-5.singnet.com.sg
115.66.33.8	A	bb115-66-33-8.singnet.com.sg
115.66.33.12	A	bb115-66-33-12.singnet.com.sg
115.66.33.21	A	bb115-66-33-21.singnet.com.sg
115.66.33.34	A+PTR	bb115-66-33-34.singnet.com.sg
115.66.33.35	A+PTR	bb115-66-33-35.singnet.com.sg
115.66.33.36	A	bb115-66-33-36.singnet.com.sg
115.66.33.37	A	bb115-66-33-37.singnet.com.sg
115.66.33.72	A	bb115-66-33-72.singnet.com.sg
115.66.33.74	A	bb115-66-33-74.singnet.com.sg
115.66.33.76	A	bb115-66-33-76.singnet.com.sg
115.66.33.80	A	bb115-66-33-80.singnet.com.sg
115.66.33.99	A+PTR	bb115-66-33-99.singnet.com.sg
115.66.33.124	A	bb115-66-33-124.singnet.com.sg
115.66.33.126	A	bb115-66-33-126.singnet.com.sg
115.66.33.127	A	bb115-66-33-127.singnet.com.sg
115.66.33.131	A+PTR	bb115-66-33-131.singnet.com.sg
115.66.33.133	A	bb115-66-33-133.singnet.com.sg
115.66.33.136	A	bb115-66-33-136.singnet.com.sg
115.66.33.138	A	bb115-66-33-138.singnet.com.sg
115.66.33.161	A+PTR	bb115-66-33-161.singnet.com.sg
115.66.33.162	A+PTR	bb115-66-33-162.singnet.com.sg
115.66.33.183	A	bb115-66-33-183.singnet.com.sg
115.66.33.187	A	bb115-66-33-187.singnet.com.sg
115.66.33.202	A	bb115-66-33-202.singnet.com.sg
115.66.33.203	A	bb115-66-33-203.singnet.com.sg
115.66.33.212	A	bb115-66-33-212.singnet.com.sg
115.66.33.214	A	bb115-66-33-214.singnet.com.sg
115.66.33.236	A	bb115-66-33-236.singnet.com.sg
115.66.33.239	A	bb115-66-33-239.singnet.com.sg
115.66.33.245	A	bb115-66-33-245.singnet.com.sg
115.66.33.249	A	bb115-66-33-249.singnet.com.sg
115.66.35.9	A+PTR	bb115-66-35-9.singnet.com.sg
115.66.36.110	A+PTR	bb115-66-36-110.singnet.com.sg
115.66.37.114	A+PTR	bb115-66-37-114.singnet.com.sg
115.66.37.204	A+PTR	bb115-66-37-204.singnet.com.sg
115.66.37.208	A	mail.someformoflight.net
115.66.37.208	A	someformoflight.net
115.66.38.246	A	bb115-66-38-246.singnet.com.sg
115.66.39.25	A	learnaholic.com
115.66.39.190	A+PTR	bb115-66-39-190.singnet.com.sg
115.66.39.229	A+PTR	bb115-66-39-229.singnet.com.sg
115.66.40.2	A	bb115-66-40-2.singnet.com.sg
115.66.40.167	A+PTR	bb115-66-40-167.singnet.com.sg
115.66.42.22	PTR	bb115-66-42-22.singnet.com.sg
115.66.42.172	A+PTR	bb115-66-42-172.singnet.com.sg
115.66.42.248	A+PTR	bb115-66-42-248.singnet.com.sg
115.66.42.249	A+PTR	bb115-66-42-249.singnet.com.sg
115.66.42.249	A	thetnaingaye.com
115.66.43.68	A+PTR	bb115-66-43-68.singnet.com.sg
115.66.43.152	A+PTR	bb115-66-43-152.singnet.com.sg
115.66.43.182	A	eenet.sg
115.66.43.239	A+PTR	bb115-66-43-239.singnet.com.sg
115.66.46.145	A+PTR	bb115-66-46-145.singnet.com.sg
115.66.46.194	A+PTR	bb115-66-46-194.singnet.com.sg
115.66.47.85	A+PTR	bb115-66-47-85.singnet.com.sg
115.66.47.151	PTR	bb115-66-47-151.singnet.com.sg
115.66.48.60	A+PTR	bb115-66-48-60.singnet.com.sg
115.66.48.155	PTR	bb115-66-48-155.singnet.com.sg
115.66.48.222	A+PTR	bb115-66-48-222.singnet.com.sg
115.66.48.222	A	cloudalwaysonline.com
115.66.49.141	A+PTR	bb115-66-49-141.singnet.com.sg
115.66.50.125	A+PTR	bb115-66-50-125.singnet.com.sg
115.66.50.131	A+PTR	bb115-66-50-131.singnet.com.sg
115.66.50.131	A	firstresidences.com
115.66.50.131	A	wellershoff.com
115.66.51.75	A	planetmills.net
115.66.52.117	A+PTR	bb115-66-52-117.singnet.com.sg
115.66.52.163	A+PTR	bb115-66-52-163.singnet.com.sg
115.66.52.208	A+PTR	bb115-66-52-208.singnet.com.sg
115.66.52.217	A+PTR	bb115-66-52-217.singnet.com.sg
115.66.54.164	PTR	bb115-66-54-164.singnet.com.sg
115.66.55.24	A+PTR	bb115-66-55-24.singnet.com.sg
115.66.55.45	A+PTR	bb115-66-55-45.singnet.com.sg
115.66.55.252	A+PTR	bb115-66-55-252.singnet.com.sg
115.66.55.252	A	hsynergy.sg
115.66.56.48	A+PTR	bb115-66-56-48.singnet.com.sg
115.66.56.48	A	storeships.com
115.66.56.50	A+PTR	bb115-66-56-50.singnet.com.sg
115.66.56.78	A+PTR	bb115-66-56-78.singnet.com.sg
115.66.56.98	A+PTR	bb115-66-56-98.singnet.com.sg
115.66.57.33	A+PTR	bb115-66-57-33.singnet.com.sg
115.66.57.55	A	bb115-66-57-55.singnet.com.sg
115.66.57.64	PTR	bb115-66-57-64.singnet.com.sg
115.66.57.68	A	bb115-66-57-68.singnet.com.sg
115.66.57.80	A	bb115-66-57-80.singnet.com.sg
115.66.57.87	A	bb115-66-57-87.singnet.com.sg
115.66.57.112	A	bb115-66-57-112.singnet.com.sg
115.66.57.142	A	bb115-66-57-142.singnet.com.sg
115.66.57.150	A	bb115-66-57-150.singnet.com.sg
115.66.57.162	A+PTR	bb115-66-57-162.singnet.com.sg
115.66.57.164	A	bb115-66-57-164.singnet.com.sg
115.66.57.166	A	bb115-66-57-166.singnet.com.sg
115.66.57.176	A	bb115-66-57-176.singnet.com.sg
115.66.57.227	PTR	bb115-66-57-227.singnet.com.sg
115.66.57.231	A	bb115-66-57-231.singnet.com.sg
115.66.58.66	A+PTR	bb115-66-58-66.singnet.com.sg
115.66.58.66	A	mail.jungmyungseok.net
115.66.58.78	A	bb115-66-58-78.singnet.com.sg
115.66.58.112	A	bb115-66-58-112.singnet.com.sg
115.66.58.138	A	bb115-66-58-138.singnet.com.sg
115.66.58.205	A	hketogaladinner.com
115.66.58.205	A	nplive2017.com
115.66.58.205	A	hrsummitregistration.com
115.66.58.244	A	bb115-66-58-244.singnet.com.sg
115.66.59.112	A+PTR	bb115-66-59-112.singnet.com.sg
115.66.59.169	A+PTR	bb115-66-59-169.singnet.com.sg
115.66.59.198	A+PTR	bb115-66-59-198.singnet.com.sg
115.66.59.248	PTR	bb115-66-59-248.singnet.com.sg
115.66.62.11	A	ictmalaysia.com
115.66.62.161	A+PTR	bb115-66-62-161.singnet.com.sg
115.66.62.170	A+PTR	bb115-66-62-170.singnet.com.sg