These entries are queried from radb.net using whois, you can try my project getting these.
:AS137483 route: 202.144.201.0/24 descr: RD Network mnt-by: MAINT-RDNET-BD mnt-routes: MAINT-RDNET-BD mnt-lower: MAINT-RDNET-BD origin: AS137483 last-modified: 2018-03-01T06:18:52Z source: APNIC rpki-ov-state: valid