These entries are queried from radb.net using whois, you can try my project getting these.
:AS140739 route: 103.152.48.0/23 origin: AS140739 descr: VNPT-Customer-USDC mnt-by: MAINT-AS45899 changed: radb [at] vnpt.vn 20221128 notify: ktm.ip [at] vnpt.vn source: RADB last-modified: 2023-11-13T16:13:09Z rpki-ov-state: valid route: 103.152.48.0/23 descr: Customer of Viettel USDC-AS-VN origin: AS140739 notify: noc_ip [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: noc_ip@viettel 20201120 source: NTTCOM rpki-ov-state: valid route: 103.152.48.0/23 descr: USDC-VN origin: AS140739 mnt-by: MAINT-VN-VNNIC last-modified: 2022-09-09T15:42:45Z source: APNIC rpki-ov-state: valid route: 103.152.48.0/24 descr: Customer of Viettel USDC-AS-VN origin: AS140739 notify: noc_ip [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: noc_ip@viettel 20201120 source: NTTCOM rpki-ov-state: valid route: 103.152.48.0/24 descr: USDC-VN origin: AS140739 mnt-by: MAINT-VN-VNNIC last-modified: 2022-09-09T15:42:47Z source: APNIC rpki-ov-state: valid route: 103.152.48.0/24 origin: AS140739 descr: Customer of SCTV, USDC mnt-by: MAINT-AS45543 changed: le.nq [at] sctv.vn 20210329 #08:09:26Z source: RADB last-modified: 2023-11-13T16:05:26Z rpki-ov-state: valid route: 103.152.49.0/24 descr: Customer of Viettel USDC-AS-VN origin: AS140739 notify: noc_ip [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: noc_ip@viettel 20201120 source: NTTCOM rpki-ov-state: valid route: 103.152.49.0/24 descr: USDC-VN origin: AS140739 mnt-by: MAINT-VN-VNNIC last-modified: 2022-09-09T15:42:49Z source: APNIC rpki-ov-state: valid route: 103.152.49.0/24 origin: AS140739 descr: customer of SCTV, USDC mnt-by: MAINT-AS45543 changed: le.nq [at] sctv.vn 20210329 #08:10:24Z source: RADB last-modified: 2023-11-13T16:05:26Z rpki-ov-state: valid