These entries are queried from radb.net using whois, you can try my project getting these.
:AS138138 route: 101.50.21.0/24 origin: AS138138 descr: route-object AS138138 CBN mnt-by: MAINT-AS38158 changed: sabirin [at] cbn.net.id 20200812 #14:27:36Z source: RADB last-modified: 2023-11-13T16:09:11Z rpki-ov-state: valid route6: 2402:9800:4006::/48 origin: AS138138 descr: CBN AS138138 mnt-by: MAINT-AS38158 changed: sabirin [at] cbn.net.id 20211111 #16:35:06Z source: RADB last-modified: 2023-11-13T16:09:11Z rpki-ov-state: valid