Robtex

Up: 220.227.224.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 220.227.232.0/22
Down right: 220.227.236.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
220.227.235.102	PTR	mail.kitagawaindia.com
220.227.235.103	PTR	mail.kitagawaindia.com
220.227.235.131	PTR	unionbankofindia.com
220.227.235.131	A	mail1.unionmail.in
220.227.235.131	A	mail.unionbankofindia.co.in
220.227.235.145	PTR	smtpmum.amarchand.com
220.227.235.148	PTR	amarchand.com
220.227.235.162	PTR	mail.met.edu
220.227.235.166	PTR	bkc.met.edu
220.227.236.68	A	ashokaedunet.com
220.227.236.156	PTR	ashokabuildcon.com
220.227.236.156	A+PTR	mail.ashokabuildcon.com
220.227.236.156	PTR	www.ashokabuildcon.com
220.227.238.17	A+PTR	mail.mum.pilship.com
220.227.238.58	A	bilsyn.com
220.227.238.58	A	www.bilsyn.com