Robtex

Up: 125.17.150.0/23
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Down left: 125.17.151.0/25
Down right: 125.17.151.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
125.17.151.81	A	site24x7.enduserexp.com
125.17.151.113	A+PTR	southmailgw.airtel.in
125.17.151.114	PTR	mx3.bharti.com
125.17.151.114	PTR	mx3.airtel.in
125.17.151.114	PTR	mx3.bharti.in
125.17.151.115	A+PTR	massmailgw.airtel.in
125.17.151.117	A+PTR	southvpn.airtel.in
125.17.151.121	A	ispeed.airtel.in
125.17.151.126	A+PTR	distributorportal.airtel.in