These entries are queried from radb.net using whois, you can try my project getting these.
:AS56306 route: 49.0.4.0/22 descr: Lintas Data Prima or Sumber Data Indonesia ??? Indosat Customer origin: AS56306 mnt-by: MAINT-AS4761 changed: support [at] indosat.com 20120702 #05:15:35Z source: RADB last-modified: 2023-11-13T16:12:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 49.0.4.0/23 descr: Proxy-registered route object origin: AS56306 notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20120702 source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 49.0.6.0/23 descr: Proxy-registered route object origin: AS56306 notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20120702 source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 49.156.20.0/22 descr: Lintas Data Prima or Sumber Data Indonesia ??? Indosat Customer origin: AS56306 mnt-by: MAINT-AS4761 changed: support [at] indosat.com 20120702 #05:14:38Z source: RADB last-modified: 2023-11-13T16:12:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source