These entries are queried from radb.net using whois, you can try my project getting these.
:AS135955 route: 103.124.56.0/22 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:04Z source: APNIC rpki-ov-state: valid route: 103.124.56.0/23 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:07Z source: APNIC rpki-ov-state: valid route: 103.124.56.0/24 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:11Z source: APNIC rpki-ov-state: valid route: 103.124.57.0/24 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:16Z source: APNIC rpki-ov-state: valid route: 103.124.58.0/23 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:20Z source: APNIC rpki-ov-state: valid route: 103.124.58.0/24 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:23Z source: APNIC rpki-ov-state: valid route: 103.124.59.0/24 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:27Z source: APNIC rpki-ov-state: valid route6: 2001:df7:1500::/48 origin: AS135955 descr: Data integration and digital transformation center of Lam Dong province mnt-by: MAINT-AS45899 changed: radb [at] vnpt.vn 20220928 #07:21:31Z source: RADB last-modified: 2023-11-13T16:12:32Z rpki-ov-state: valid route6: 2001:df7:1500::/48 descr: LAMDONGPORTAL-AS-VN origin: AS135955 notify: noc_ip [at] viettel.com.vn mnt-by: MAINT-VIETTEL changed: noc_ip@viettel 20190410 source: NTTCOM rpki-ov-state: valid route6: 2001:df7:1500::/48 descr: LAMDONGPORTAL-VN origin: AS135955 mnt-by: MAINT-VN-VNNIC last-modified: 2022-01-18T14:20:52Z source: APNIC rpki-ov-state: valid