These entries are queried from radb.net using whois, you can try my project getting these.
:AS138581 route: 103.133.204.0/22 origin: AS138581 descr: Md. Rasel Ahmed Hijolhati, Baroypara Kaliakoir mnt-by: MAINT-BRITTONETWORK-BD last-modified: 2020-05-19T15:31:15Z source: APNIC rpki-ov-state: valid route: 103.133.204.0/23 origin: AS138581 descr: Md. Rasel Ahmed Hijolhati, Baroypara Kaliakoir mnt-by: MAINT-BRITTONETWORK-BD last-modified: 2020-05-19T15:31:16Z source: APNIC rpki-ov-state: valid route: 103.133.205.0/24 origin: AS138581 descr: Md. Rasel Ahmed Hijolhati, Baroypara Kaliakoir mnt-by: MAINT-BRITTONETWORK-BD last-modified: 2020-05-19T15:31:18Z source: APNIC rpki-ov-state: valid route: 103.133.206.0/23 origin: AS138581 descr: Md. Rasel Ahmed Hijolhati, Baroypara Kaliakoir mnt-by: MAINT-BRITTONETWORK-BD last-modified: 2020-05-19T15:31:19Z source: APNIC rpki-ov-state: valid route6: 2404:5340::/32 origin: AS138581 descr: Md. Rasel Ahmed Hijolhati, Baroypara Kaliakoir mnt-by: MAINT-BRITTONETWORK-BD last-modified: 2021-03-09T08:12:58Z source: APNIC rpki-ov-state: valid