These entries are queried from radb.net using whois, you can try my project getting these.
:AS56166 route: 203.18.51.0/24 descr: route object for 203.18.51.0/24 origin: AS56166 mnt-lower: MAINT-IN-IISERBNET mnt-routes: MAINT-IN-IISERBNET mnt-by: MAINT-IN-IISERBNET last-modified: 2011-09-06T05:04:31Z source: APNIC rpki-ov-state: valid route6: 2001:df0:207::/48 descr: route6 object for 2001:0DF0:0207::/48 origin: AS56166 mnt-lower: MAINT-IN-IISERBNET mnt-routes: MAINT-IN-IISERBNET mnt-by: MAINT-IISERBNET-IN last-modified: 2011-10-04T10:05:26Z source: APNIC rpki-ov-state: valid