Robtex

Up: 101.53.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 101.53.16.0/21
Down right: 101.53.24.0/21

IP	Type	Hostname
101.53.17.2	PTR	ci53.17-2.netnam.vn
101.53.18.178	PTR	ci53.18-178.netnam.vn
101.53.18.178	A	sysadminnhatrang.com
101.53.19.19	PTR	ci53.19-19.netnam.vn
101.53.19.33	PTR	ci53.19-33.netnam.vn
101.53.19.80	PTR	ci53.19-80.netnam.vn
101.53.19.96	PTR	ci53.19-96.netnam.vn
101.53.19.99	A	student.tdtu.edu.vn
101.53.19.99	A	itservices.tdtu.edu.vn
101.53.19.100	A	elearning.tdt.edu.vn
101.53.19.103	A	tdtu.edu.vn
101.53.19.161	PTR	ci53.19-161.netnam.vn
101.53.19.192	PTR	ci53.19-192.netnam.vn
101.53.19.210	PTR	ci53.19-210.netnam.vn
101.53.19.211	PTR	ci53.19-211.netnam.vn
101.53.21.32	PTR	ci53.21-32.netnam.vn
101.53.21.34	PTR	ci53.21-34.netnam.vn
101.53.21.35	PTR	ci53.21-35.netnam.vn
101.53.21.48	PTR	ci53.21-48.netnam.vn
101.53.21.50	A+PTR	mail.adcvn.com
101.53.21.52	A	profile.adc.vn
101.53.21.65	PTR	ci53.21-65.netnam.vn
101.53.21.80	PTR	ci53.21-80.netnam.vn
101.53.21.98	PTR	ci53.21-98.netnam.vn
101.53.21.99	PTR	ci53.21-99.netnam.vn
101.53.21.131	PTR	ci53.21-131.netnam.vn
101.53.21.162	PTR	ci53.21-162.netnam.vn
101.53.21.162	A	mynas.siam-555.com
101.53.21.176	PTR	ci53.21-176.netnam.vn
101.53.21.193	PTR	ci53.21-193.netnam.vn
101.53.21.242	PTR	ci53.21-242.netnam.vn
101.53.22.2	PTR	ci53.22-2.netnam.vn
101.53.23.3	PTR	ci53.23-3.netnam.vn
101.53.23.3	A	glassegg1.com
101.53.23.66	PTR	ci53.23-66.netnam.vn
101.53.23.66	A	mail01.longdan.co.uk
101.53.23.75	PTR	ci53.23-75.netnam.vn
101.53.23.75	A	mail.longdan.co.uk
101.53.26.65	PTR	ci53.26-65.netnam.vn
101.53.26.225	PTR	ci53.26-225.netnam.vn
101.53.27.97	PTR	ci53.27-97.netnam.vn
101.53.27.130	PTR	ci53.27-130.netnam.vn
101.53.27.131	PTR	ci53.27-131.netnam.vn
101.53.27.137	A	vietravel.fr
101.53.27.176	PTR	ci53.27-176.netnam.vn
101.53.28.3	PTR	ci53.28-3.netnam.vn
101.53.28.64	PTR	ci53.28-64.netnam.vn
101.53.28.65	PTR	ci53.28-65.netnam.vn
101.53.28.67	PTR	ci53.28-67.netnam.vn
101.53.28.81	PTR	ci53.28-81.netnam.vn
101.53.28.82	PTR	ci53.28-82.netnam.vn
101.53.28.128	PTR	ci53.28-128.netnam.vn
101.53.28.131	PTR	ci53.28-131.netnam.vn
101.53.28.144	PTR	ci53.28-144.netnam.vn
101.53.28.145	PTR	ci53.28-145.netnam.vn
101.53.28.195	PTR	ci53.28-195.netnam.vn
101.53.28.209	PTR	ci53.28-209.netnam.vn
101.53.28.211	PTR	ci53.28-211.netnam.vn
101.53.28.225	PTR	ci53.28-225.netnam.vn
101.53.28.227	PTR	ci53.28-227.netnam.vn
101.53.28.240	PTR	ci53.28-240.netnam.vn
101.53.28.243	PTR	ci53.28-243.netnam.vn
101.53.30.17	PTR	ci53.30-17.netnam.vn
101.53.30.32	PTR	ci53.30-32.netnam.vn
101.53.30.65	PTR	ci53.30-65.netnam.vn
101.53.30.144	PTR	ci53.30-144.netnam.vn
101.53.30.146	PTR	ci53.30-146.netnam.vn
101.53.30.147	PTR	ci53.30-147.netnam.vn
101.53.30.160	PTR	ci53.30-160.netnam.vn
101.53.30.177	PTR	ci53.30-177.netnam.vn
101.53.30.178	PTR	ci53.30-178.netnam.vn
101.53.30.193	PTR	ci53.30-193.netnam.vn
101.53.30.194	PTR	ci53.30-194.netnam.vn
101.53.30.209	PTR	ci53.30-209.netnam.vn
101.53.30.210	PTR	ci53.30-210.netnam.vn
101.53.30.211	PTR	ci53.30-211.netnam.vn
101.53.30.225	PTR	ci53.30-225.netnam.vn
101.53.30.240	PTR	ci53.30-240.netnam.vn
101.53.31.4	PTR	ci53.31-4.netnam.vn
101.53.31.32	PTR	ci53.31-32.netnam.vn
101.53.31.49	PTR	ci53.31-49.netnam.vn
101.53.31.65	PTR	ci53.31-65.netnam.vn
101.53.31.66	PTR	ci53.31-66.netnam.vn
101.53.31.80	PTR	ci53.31-80.netnam.vn
101.53.31.99	PTR	ci53.31-99.netnam.vn
101.53.31.128	PTR	ci53.31-128.netnam.vn
101.53.31.130	PTR	ci53.31-130.netnam.vn
101.53.31.146	PTR	ci53.31-146.netnam.vn
101.53.31.192	PTR	ci53.31-192.netnam.vn
101.53.31.225	PTR	ci53.31-225.netnam.vn
101.53.31.226	PTR	ci53.31-226.netnam.vn