These entries are queried from radb.net using whois, you can try my project getting these.
:AS139857 route: 103.146.68.0/23 origin: AS139857 descr: Tiger Global Network & Communication mnt-by: MAINT-TGNC-BD last-modified: 2019-12-09T12:57:29Z source: APNIC rpki-ov-state: valid route: 103.146.68.0/24 origin: AS139857 descr: Tiger Global Network & Communication mnt-by: MAINT-TGNC-BD last-modified: 2019-12-09T12:57:48Z source: APNIC rpki-ov-state: valid route: 103.146.69.0/24 origin: AS139857 descr: Tiger Global Network & Communication mnt-by: MAINT-TGNC-BD last-modified: 2019-12-09T12:58:05Z source: APNIC rpki-ov-state: valid