These entries are queried from radb.net using whois, you can try my project getting these.
:AS56148 route: 103.10.88.0/22 descr: Proxy-registered route object origin: AS56148 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131113 source: RADB last-modified: 2023-11-13T15:45:51Z rpki-ov-state: valid route: 103.10.88.0/22 descr: Tai Chinh Dau khi Viet Nam - PVFC origin: AS56148 notify: noc [at] vnn.vn notify: bachhm [at] vdc.com.vn mnt-by: MAINT-VDC changed: bachhm [at] vdc.com.vn 20110713 source: NTTCOM rpki-ov-state: valid route: 103.10.88.0/22 descr: PVCOMBANK-VN origin: AS56148 mnt-by: MAINT-VN-VNNIC last-modified: 2022-03-11T05:36:51Z source: APNIC rpki-ov-state: valid route: 103.10.88.0/23 descr: PVCOMBANK-VN origin: AS56148 mnt-by: MAINT-VN-VNNIC last-modified: 2022-03-11T05:36:53Z source: APNIC rpki-ov-state: valid route: 103.10.88.0/23 descr: Proxy-registered route object origin: AS56148 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131113 source: RADB last-modified: 2023-11-13T15:45:51Z rpki-ov-state: valid route: 103.10.88.0/24 descr: Proxy-registered route object origin: AS56148 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131113 source: RADB last-modified: 2023-11-13T15:45:51Z rpki-ov-state: valid route: 103.10.88.0/24 descr: PVCOMBANK-VN origin: AS56148 mnt-by: MAINT-VN-VNNIC last-modified: 2022-03-11T05:36:55Z source: APNIC rpki-ov-state: valid route: 103.10.89.0/24 descr: PVCOMBANK-VN origin: AS56148 mnt-by: MAINT-VN-VNNIC last-modified: 2022-03-11T05:36:57Z source: APNIC rpki-ov-state: valid route: 103.10.89.0/24 descr: Proxy-registered route object origin: AS56148 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131113 source: RADB last-modified: 2023-11-13T15:45:51Z rpki-ov-state: valid route: 103.10.90.0/23 descr: PVCOMBANK-VN origin: AS56148 mnt-by: MAINT-VN-VNNIC last-modified: 2022-03-11T05:36:59Z source: APNIC rpki-ov-state: valid route: 103.10.90.0/23 descr: Proxy-registered route object origin: AS56148 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131113 source: RADB last-modified: 2023-11-13T15:45:51Z rpki-ov-state: valid route: 103.10.90.0/24 descr: PVCOMBANK-VN origin: AS56148 mnt-by: MAINT-VN-VNNIC last-modified: 2022-03-11T05:37:01Z source: APNIC rpki-ov-state: valid route: 103.10.90.0/24 descr: Proxy-registered route object origin: AS56148 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131113 source: RADB last-modified: 2023-11-13T15:45:51Z rpki-ov-state: valid route: 103.10.91.0/24 descr: PVCOMBANK-VN origin: AS56148 mnt-by: MAINT-VN-VNNIC last-modified: 2022-03-11T05:37:03Z source: APNIC rpki-ov-state: valid route: 103.10.91.0/24 descr: Proxy-registered route object origin: AS56148 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131113 source: RADB last-modified: 2023-11-13T15:45:51Z rpki-ov-state: valid