These entries are queried from radb.net using whois, you can try my project getting these.
:AS131376 route: 103.148.158.0/23 descr: KBSV-VN origin: AS131376 mnt-by: MAINT-VN-VNNIC last-modified: 2022-02-22T08:56:39Z source: APNIC rpki-ov-state: valid route: 103.148.158.0/23 descr: Customer of Viettel KBSV-AS-VN origin: AS131376 notify: noc_ip [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: noc_ip@viettel 20200226 source: NTTCOM rpki-ov-state: valid route: 103.148.158.0/24 descr: Customer of Viettel KBSV-AS-VN origin: AS131376 notify: noc_ip [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: noc_ip@viettel 20200226 source: NTTCOM rpki-ov-state: valid route: 103.148.158.0/24 descr: KBSV-VN origin: AS131376 mnt-by: MAINT-VN-VNNIC last-modified: 2022-02-22T08:56:42Z source: APNIC rpki-ov-state: valid route: 103.148.159.0/24 descr: KBSV-VN origin: AS131376 mnt-by: MAINT-VN-VNNIC last-modified: 2022-02-22T08:56:45Z source: APNIC rpki-ov-state: valid route: 103.148.159.0/24 descr: Customer of Viettel KBSV-AS-VN origin: AS131376 notify: noc_ip [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: noc_ip@viettel 20200226 source: NTTCOM rpki-ov-state: valid