Robtex

Up: 27.251.200.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 27.251.200.0/24
Down right: 27.251.201.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.251.200.52	PTR	aircel-gprs-52.200.251.27.aircel.co.in
27.251.200.182	PTR	aircel-gprs-182.200.251.27.aircel.co.in
27.251.200.254	PTR	abs-static-254.200.251.27.aircel.co.in
27.251.201.5	A+PTR	imap.jnport.com
27.251.201.5	A+PTR	mail.jnport.com
27.251.201.5	PTR	pop.jnport.com
27.251.201.6	A+PTR	edge.jnport.com
27.251.201.155	A	mail.skymailpune.com
27.251.201.155	A	mail.smartdatablr.com
27.251.201.155	A	mail.adroitmumbai.com
27.251.201.158	PTR	abs-static-158.201.251.27.aircel.co.in
27.251.201.158	A	ctsmumbai.com