Robtex

Up: 27.251.208.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 27.251.208.0/22
Down right: 27.251.212.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.251.208.19	PTR	abs-static-19.208.251.27.aircel.co.in
27.251.208.218	A	mail.unityexports.com
27.251.208.218	A	mx1.unityexports.com
27.251.208.218	A	mx1.akiratextiles.com
27.251.209.40	A	talentxindia.com
27.251.209.40	A	mail.netambit.in
27.251.209.40	A	netambit.in
27.251.210.5	PTR	abs-static-5.210.251.27.aircel.co.in
27.251.210.5	A	mailjp.sulekha.net
27.251.210.5	A	mail.sulekha.net
27.251.210.67	A+PTR	postman.realimage.co.in
27.251.210.67	A	titan.realimage.com
27.251.210.67	A	mail.realimage.co.in
27.251.210.70	A+PTR	arrival.realimage.co.in
27.251.210.210	PTR	abs-static-210.210.251.27.aircel.co.in
27.251.211.132	PTR	abs-static-132.211.251.27.aircel.co.in
27.251.211.238	PTR	abs-static-238.211.251.27.aircel.co.in
27.251.213.116	PTR	aircel-gprs-116.213.251.27.aircel.co.in
27.251.213.163	PTR	abs-static-163.213.251.27.aircel.co.in
27.251.215.36	PTR	nalcoindia.co.in
27.251.215.40	PTR	nalco-fw.nalcoindia.co.in
27.251.215.51	PTR	mx5.nalcoindia.co.in
27.251.215.61	A+PTR	nalcoindia.net
27.251.215.178	PTR	abs-static-178.215.251.27.aircel.co.in