Robtex

Up: 61.16.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.16.208.0/23
Down right: 61.16.210.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.16.208.16	PTR	hw-static-16-208-16-61.direct.net.in
61.16.208.47	PTR	hw-static-47-208-16-61.direct.net.in
61.16.208.94	PTR	hw-static-94-208-16-61.direct.net.in
61.16.208.146	PTR	ns1.networldindia.com
61.16.208.147	PTR	ns2.networldindia.com
61.16.209.92	PTR	hw-static-92-209-16-61.direct.net.in
61.16.209.117	A	mail.nexussmo.com
61.16.209.125	PTR	hw-static-125-209-16-61.direct.net.in
61.16.209.183	PTR	hw-static-183-209-16-61.direct.net.in
61.16.209.190	PTR	hw-static-190-209-16-61.direct.net.in
61.16.209.197	A+PTR	indiadomino2.xldynamics.com
61.16.209.198	A	indiadomino1.xldynamics.com
61.16.209.199	A+PTR	smtpout2.swmc.com
61.16.209.245	PTR	hw-static-245-209-16-61.direct.net.in
61.16.209.245	A	mail.tagoffshore.net
61.16.210.22	PTR	hw-static-22-210-16-61.direct.net.in
61.16.210.46	PTR	hw-static-46-210-16-61.direct.net.in
61.16.210.96	PTR	hw-static-96-210-16-61.direct.net.in
61.16.210.154	PTR	hw-static-154-210-16-61.direct.net.in
61.16.210.162	A+PTR	mx01.mkttech.in
61.16.210.162	A	mx01.mkttechnologies.com
61.16.210.162	A	mx01.namaltech.com
61.16.210.163	PTR	hw-static-163-210-16-61.direct.net.in
61.16.210.170	PTR	hw-static-170-210-16-61.direct.net.in
61.16.210.170	A	ns1.mkttechnologies.com
61.16.210.173	A	mx03.mkttech.in
61.16.210.183	PTR	hw-static-183-210-16-61.direct.net.in
61.16.210.185	PTR	hw-static-185-210-16-61.direct.net.in
61.16.211.14	PTR	hw-static-14-211-16-61.direct.net.in
61.16.211.14	A	mx.iballinfo.co.in
61.16.211.23	PTR	hw-static-23-211-16-61.direct.net.in
61.16.211.30	PTR	hw-static-30-211-16-61.direct.net.in