Robtex

Up: 61.16.248.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.16.252.0/23
Down right: 61.16.254.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.16.252.239	PTR	guj-static-239-252-16-61.direct.net.in
61.16.254.4	PTR	guj-static-4-254-16-61.direct.net.in
61.16.254.160	PTR	guj-static-160-254-16-61.direct.net.in
61.16.255.120	PTR	doshionveolia.com
61.16.255.120	PTR	mail.doshion.com
61.16.255.130	PTR	mail.blogtard.com
61.16.255.130	PTR	mail.dearyans.com
61.16.255.130	PTR	mail.doshion.com
61.16.255.133	A+PTR	mail.gondwanaeng.com
61.16.255.135	PTR	mail.doshion.com
61.16.255.135	PTR	mail.doshionveolia.com
61.16.255.135	PTR	mail.dearyans.com
61.16.255.136	PTR	mail.doshion.com
61.16.255.136	A	mail.doshionveolia.com
61.16.255.138	A+PTR	mail.fivebro.com
61.16.255.139	A	mail.pacific-pipes.com
61.16.255.140	A	mail.dearyans.com
61.16.255.255	PTR	guj-static-255-255-16-61.direct.net.in