These entries are queried from radb.net using whois, you can try my project getting these.
:AS37647 route: 196.11.90.0/24 descr: BCN origin: AS37647 mnt-by: MAINT-AS37613 changed: franklin [at] dolphintelecom.net 20160913 #08:00:42Z source: RADB last-modified: 2023-11-13T15:49:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.40.144.0/20 descr: BCN origin: AS37647 mnt-by: MAINT-AS37613 changed: aninagyei [at] dolphintelecom.net 20180628 #09:01:52Z source: RADB last-modified: 2023-11-13T15:54:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.50.24.0/22 descr: BLUECLOUD origin: AS37647 mnt-by: MAINT-AS37613 changed: franklin [at] dolphintelecom.net 20170112 #10:38:59Z source: RADB last-modified: 2023-11-13T15:50:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source