These entries are queried from radb.net using whois, you can try my project getting these.
:AS146988 route: 103.172.112.0/24 origin: AS146988 descr: Omit Odhikary 1446 Rail Road mnt-by: MAINT-ASTHANETWORKS-BD last-modified: 2021-08-27T05:35:32Z source: APNIC rpki-ov-state: valid route: 103.172.113.0/24 origin: AS146988 descr: Omit Odhikary 1446 Rail Road mnt-by: MAINT-ASTHANETWORKS-BD last-modified: 2021-08-27T05:35:51Z source: APNIC rpki-ov-state: valid route6: 2001:df7:6f80::/48 origin: AS146988 descr: Omit Odhikary 1446 Rail Road Jashore Sadar mnt-by: MAINT-ASTHANETWORKS-BD last-modified: 2022-05-30T12:14:08Z source: APNIC rpki-ov-state: valid