These entries are queried from radb.net using whois, you can try my project getting these.
:AS140906 route: 103.153.48.0/23 origin: AS140906 descr: Oliur Rahman 97 Shardha Ghosh Road mnt-by: MAINT-MAYASOFT-BD last-modified: 2020-07-15T13:24:55Z source: APNIC rpki-ov-state: valid route: 103.153.48.0/24 origin: AS140906 descr: Oliur Rahman 97 Shardha Ghosh Road mnt-by: MAINT-MAYASOFT-BD last-modified: 2020-07-15T13:25:16Z source: APNIC rpki-ov-state: valid route: 103.153.49.0/24 origin: AS140906 descr: Oliur Rahman 97 Shardha Ghosh Road mnt-by: MAINT-MAYASOFT-BD last-modified: 2020-07-15T13:25:30Z source: APNIC rpki-ov-state: valid route6: 2406:3f40::/48 origin: AS140906 descr: Oliur Rahman 97 Shardha Ghosh Road mnt-by: MAINT-MAYASOFT-BD last-modified: 2023-05-21T14:16:33Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2406:3f40:1::/48 origin: AS140906 descr: Oliur Rahman 97 Shardha Ghosh Road mnt-by: MAINT-MAYASOFT-BD last-modified: 2023-05-21T14:16:28Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2406:3f40:2::/48 origin: AS140906 descr: Oliur Rahman 97 Shardha Ghosh Road mnt-by: MAINT-MAYASOFT-BD last-modified: 2023-05-21T14:16:30Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2406:3f40:3::/48 origin: AS140906 descr: Oliur Rahman 97 Shardha Ghosh Road mnt-by: MAINT-MAYASOFT-BD last-modified: 2023-05-21T14:16:32Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source