Robtex

Up: 61.16.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.16.128.0/23
Down right: 61.16.130.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.16.128.43	PTR	hw-static-43-128-16-61.direct.net.in
61.16.128.43	A	infofacestech.com
61.16.128.43	A	smtp.infofacestech.com
61.16.128.65	PTR	hw-static-65-128-16-61.direct.net.in
61.16.128.65	A	ts.kaartech.com
61.16.128.155	PTR	static-155.128.16.61-tataidc.co.in
61.16.128.169	A	www.texmocastings.net
61.16.128.178	PTR	static-178.128.16.61-tataidc.co.in
61.16.128.186	PTR	hw-static-186-128-16-61.direct.net.in
61.16.129.68	PTR	hw-static-68-129-16-61.direct.net.in
61.16.129.68	A	smtp1.futuresoftsolutions.com
61.16.129.69	A	webmail.futuresoftsolutions.com
61.16.129.73	PTR	static-73.129.16.61-tataidc.co.in
61.16.129.83	PTR	static-83.129.16.61-tataidc.co.in
61.16.129.83	A	eofficehites.com
61.16.129.139	PTR	hw-static-139-129-16-61.direct.net.in
61.16.129.139	A	dps.in
61.16.129.242	PTR	static-242.129.16.61-tataidc.co.in
61.16.129.244	PTR	static-244.129.16.61-tataidc.co.in
61.16.130.14	PTR	static-14.130.16.61-tataidc.co.in
61.16.130.30	PTR	static-30.130.16.61-tataidc.co.in
61.16.130.50	A	mail.gcsmc.org
61.16.130.78	PTR	static-78.130.16.61-tataidc.co.in
61.16.130.238	PTR	hw-static-238-130-16-61.direct.net.in
61.16.131.12	PTR	hw-static-12-131-16-61.direct.net.in
61.16.131.75	A	email.hrplacement.in
61.16.131.83	PTR	hw-static-83-131-16-61.direct.net.in
61.16.131.83	A	tmcimss2.tmckolkata.com
61.16.131.131	PTR	hw-static-131-131-16-61.direct.net.in
61.16.131.131	A	bizeaze.com
61.16.131.132	A	veiculu.com
61.16.131.139	PTR	static-139.131.16.61-tataidc.co.in
61.16.131.204	PTR	static-204.131.16.61-tataidc.co.in