These entries are queried from radb.net using whois, you can try my project getting these.
:AS138688 route: 103.136.156.0/23 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2019-11-28T05:58:23Z source: APNIC rpki-ov-state: valid route: 103.136.156.0/24 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2019-03-12T08:05:49Z source: APNIC rpki-ov-state: valid route: 103.136.157.0/24 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2021-03-22T11:32:55Z source: APNIC rpki-ov-state: valid route6: 2407:4140::/32 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:31:00Z source: APNIC rpki-ov-state: valid route6: 2407:4140::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:28:26Z source: APNIC rpki-ov-state: valid route6: 2407:4140:1::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:28:35Z source: APNIC rpki-ov-state: valid route6: 2407:4140:2::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:28:44Z source: APNIC rpki-ov-state: valid route6: 2407:4140:3::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:28:53Z source: APNIC rpki-ov-state: valid route6: 2407:4140:4::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:28:59Z source: APNIC rpki-ov-state: valid route6: 2407:4140:5::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:29:09Z source: APNIC rpki-ov-state: valid route6: 2407:4140:6::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:29:19Z source: APNIC rpki-ov-state: valid route6: 2407:4140:7::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:29:26Z source: APNIC rpki-ov-state: valid route6: 2407:4140:8::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:29:35Z source: APNIC rpki-ov-state: valid route6: 2407:4140:9::/48 origin: AS138688 descr: Bondhon Online Network mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:29:45Z source: APNIC rpki-ov-state: valid route6: 2407:4140:a::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:23:57Z source: APNIC rpki-ov-state: valid route6: 2407:4140:b::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:24:00Z source: APNIC rpki-ov-state: valid route6: 2407:4140:c::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:24:03Z source: APNIC rpki-ov-state: valid route6: 2407:4140:d::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:24:05Z source: APNIC rpki-ov-state: valid route6: 2407:4140:e::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:24:08Z source: APNIC rpki-ov-state: valid route6: 2407:4140:f::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:24:11Z source: APNIC rpki-ov-state: valid route6: 2407:4140:10::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:25:07Z source: APNIC rpki-ov-state: valid route6: 2407:4140:11::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:25:18Z source: APNIC rpki-ov-state: valid route6: 2407:4140:13::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:25:29Z source: APNIC rpki-ov-state: valid route6: 2407:4140:14::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:25:40Z source: APNIC rpki-ov-state: valid route6: 2407:4140:15::/48 origin: AS138688 descr: Abul Kalam Azad babul bhaban, Greatwall city mnt-by: MAINT-BON-BD last-modified: 2022-06-08T05:25:51Z source: APNIC rpki-ov-state: valid