These entries are queried from radb.net using whois, you can try my project getting these.
:AS24320 route: 202.72.240.0/22 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2010-05-13T06:26:55Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.72.240.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:16:54Z source: APNIC rpki-ov-state: valid route: 202.72.241.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2010-05-13T06:28:00Z source: APNIC rpki-ov-state: valid route: 202.72.242.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:16:55Z source: APNIC rpki-ov-state: valid route: 202.72.243.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:16:55Z source: APNIC rpki-ov-state: valid route: 202.72.244.0/22 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:15:54Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.72.244.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:17:55Z source: APNIC rpki-ov-state: valid route: 202.72.245.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:17:56Z source: APNIC rpki-ov-state: valid route: 202.72.246.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:17:56Z source: APNIC rpki-ov-state: valid route: 202.72.247.0/24 descr: MN-MONGOLIA-RAILCOM-20081201 origin: AS24320 mnt-by: MAINT-MN-RAILCOM last-modified: 2008-12-05T06:17:56Z source: APNIC rpki-ov-state: valid