Robtex

Up: 121.7.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 121.7.64.0/21
Down right: 121.7.72.0/21

IP	Type	Hostname
121.7.64.179	PTR	bb121-7-64-179.singnet.com.sg
121.7.64.219	A+PTR	bb121-7-64-219.singnet.com.sg
121.7.65.48	A+PTR	bb121-7-65-48.singnet.com.sg
121.7.65.191	A+PTR	bb121-7-65-191.singnet.com.sg
121.7.66.254	A	bb121-7-66-254.singnet.com.sg
121.7.67.48	A+PTR	bb121-7-67-48.singnet.com.sg
121.7.67.251	PTR	bb121-7-67-251.singnet.com.sg
121.7.68.14	A	bb121-7-68-14.singnet.com.sg
121.7.68.197	A	bb121-7-68-197.singnet.com.sg
121.7.68.212	A	bb121-7-68-212.singnet.com.sg
121.7.69.66	PTR	bb121-7-69-66.singnet.com.sg
121.7.69.78	PTR	bb121-7-69-78.singnet.com.sg
121.7.69.239	PTR	bb121-7-69-239.singnet.com.sg
121.7.69.251	A+PTR	bb121-7-69-251.singnet.com.sg
121.7.70.82	A	bb121-7-70-82.singnet.com.sg
121.7.70.156	A+PTR	bb121-7-70-156.singnet.com.sg
121.7.71.54	A+PTR	bb121-7-71-54.singnet.com.sg
121.7.71.54	A	salbang.com
121.7.72.16	PTR	bb121-7-72-16.singnet.com.sg
121.7.72.169	A	bb121-7-72-169.singnet.com.sg
121.7.73.86	A+PTR	bb121-7-73-86.singnet.com.sg
121.7.73.189	A+PTR	bb121-7-73-189.singnet.com.sg
121.7.73.189	A	datelah.com
121.7.74.55	A	bb121-7-74-55.singnet.com.sg
121.7.74.251	A	bb121-7-74-251.singnet.com.sg
121.7.75.161	PTR	bb121-7-75-161.singnet.com.sg
121.7.76.14	A	bb121-7-76-14.singnet.com.sg
121.7.77.150	A+PTR	bb121-7-77-150.singnet.com.sg
121.7.77.205	A+PTR	bb121-7-77-205.singnet.com.sg
121.7.78.25	A	mail.tallguysg.com
121.7.78.146	PTR	bb121-7-78-146.singnet.com.sg
121.7.78.146	A	fantasy.changeip.org
121.7.78.147	A+PTR	bb121-7-78-147.singnet.com.sg
121.7.78.148	A	bb121-7-78-148.singnet.com.sg
121.7.78.164	A	bb121-7-78-164.singnet.com.sg