These entries are queried from radb.net using whois, you can try my project getting these.
:AS131401 route: 103.228.20.0/22 origin: AS131401 descr: VNPT-Customer-ZEN-ECN 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: 103.228.20.0/22 descr: STTTT_VPC - CUSTOMER OF VIETTEL origin: AS131401 remarks: this is non-portable space, no exceptions notify: minhna4 [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: minhna4 [at] viettel.com.vn 20140405 source: NTTCOM rpki-ov-state: valid route: 103.228.20.0/22 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2023-06-15T13:47:36Z source: APNIC rpki-ov-state: valid route: 103.228.20.0/23 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2023-06-15T13:47:37Z source: APNIC rpki-ov-state: valid route: 103.228.20.0/24 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2023-06-15T13:47:38Z source: APNIC rpki-ov-state: valid route: 103.228.21.0/24 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2023-06-15T13:47:38Z source: APNIC rpki-ov-state: valid route: 103.228.22.0/23 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2023-06-15T13:47:39Z source: APNIC rpki-ov-state: valid route: 103.228.22.0/24 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2023-06-15T13:47:39Z source: APNIC rpki-ov-state: valid route: 103.228.23.0/24 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2023-06-15T13:47:40Z source: APNIC rpki-ov-state: valid route6: 2001:df0:8380::/48 descr: SOTTTTVP-VN origin: AS131401 mnt-by: MAINT-VN-VNNIC last-modified: 2022-04-20T01:17:16Z source: APNIC rpki-ov-state: valid