Robtex

Up: 115.111.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 115.111.64.0/21
Down right: 115.111.72.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.111.65.133	PTR	115.111.65.133.static-delhi.vsnl.net.in
115.111.65.162	PTR	115.111.65.162.static-delhi.vsnl.net.in
115.111.66.97	PTR	115.111.66.97.static-delhi.vsnl.net.in
115.111.67.35	PTR	115.111.67.35.static-delhi.vsnl.net.in
115.111.67.64	PTR	115.111.67.64.static-delhi.vsnl.net.in
115.111.67.176	PTR	115.111.67.176.static-delhi.vsnl.net.in
115.111.68.178	PTR	115.111.68.178.static-delhi.vsnl.net.in
115.111.69.34	PTR	115.111.69.34.static-delhi.vsnl.net.in
115.111.69.34	A	demo.fullestop.co.uk
115.111.69.35	PTR	115.111.69.35.static-delhi.vsnl.net.in
115.111.69.36	A	lamp.demo321.com
115.111.69.40	A	ex01.fullestop.biz
115.111.69.225	PTR	115.111.69.225.static-delhi.vsnl.net.in
115.111.71.5	PTR	115.111.71.5.static-delhi.vsnl.net.in
115.111.71.224	PTR	115.111.71.224.static-delhi.vsnl.net.in
115.111.72.174	PTR	115.111.72.174.static-ahmedabad.vsnl.net.in
115.111.73.85	PTR	115.111.73.85.static-ahmedabad.vsnl.net.in
115.111.74.161	PTR	mail.bluelotuspr.com
115.111.74.161	PTR	mail.bluebytes.info
115.111.74.161	PTR	mail.trustadvisory.info
115.111.75.12	PTR	115.111.75.12.static-ahmedabad.vsnl.net.in
115.111.77.193	PTR	115.111.77.193.static-ahmedabad.vsnl.net.in
115.111.78.1	PTR	115.111.78.1.static-ahmedabad.vsnl.net.in
115.111.78.101	A	mail.rpsil.in
115.111.78.130	PTR	115.111.78.130.static-ahmedabad.vsnl.net.in
115.111.79.34	PTR	115.111.79.34.static-ahmedabad.vsnl.net.in
115.111.79.46	PTR	115.111.79.46.static-ahmedabad.vsnl.net.in
115.111.79.46	A	hermes.cleartrip.com
115.111.79.46	A	mail.cleartrip.sa
115.111.79.85	PTR	115.111.79.85.static-ahmedabad.vsnl.net.in
115.111.79.87	PTR	infobeans.com
115.111.79.87	A	email.infobeans.com
115.111.79.90	PTR	115.111.79.90.static-ahmedabad.vsnl.net.in
115.111.79.94	PTR	115.111.79.94.static-ahmedabad.vsnl.net.in
115.111.79.97	PTR	115.111.79.97.static-ahmedabad.vsnl.net.in
115.111.79.98	PTR	115.111.79.98.static-ahmedabad.vsnl.net.in
115.111.79.208	PTR	115.111.79.208.static-ahmedabad.vsnl.net.in
115.111.79.210	PTR	115.111.79.210.static-ahmedabad.vsnl.net.in
115.111.79.210	A	intermail.timesofmoney.com
115.111.79.226	A+PTR	mail.celloworld.com
115.111.79.226	PTR	mail.pentekpen.com
115.111.79.226	A+PTR	mail.pentekpens.com
115.111.79.228	PTR	115.111.79.228.static-ahmedabad.vsnl.net.in