These entries are queried from radb.net using whois, you can try my project getting these.
:AS139399 route: 123.253.244.0/24 descr: PT. Palapa Network Nusantara origin: AS139399 mnt-by: MAINT-ID-PNN last-modified: 2023-01-15T14:13:12Z source: IDNIC rpki-ov-state: valid route: 123.253.245.0/24 descr: PT. Palapa Network Nusantara origin: AS139399 mnt-by: MAINT-ID-PNN last-modified: 2023-01-15T14:13:30Z source: IDNIC rpki-ov-state: valid route: 123.253.246.0/24 descr: PT. Palapa Network Nusantara origin: AS139399 mnt-by: MAINT-ID-PNN last-modified: 2023-01-15T14:13:43Z source: IDNIC rpki-ov-state: valid route: 123.253.247.0/24 descr: PT. Palapa Network Nusantara origin: AS139399 mnt-by: MAINT-ID-PNN last-modified: 2023-01-15T14:14:00Z source: IDNIC rpki-ov-state: valid