These entries are queried from radb.net using whois, you can try my project getting these.
:AS37201 route: 196.46.28.0/24 descr: Bank Windhoek origin: AS37201 mnt-by: BWK1-37201-MNT changed: *** [at] bankwindhoek.com.na 20161031 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.46.28.0/24 origin: AS37201 mnt-by: AS33763-MNT mnt-by: AS37201-MNT created: 2016-11-11T19:15:09Z last-modified: 2018-09-04T18:34:54Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.46.28.0/24 descr: Bank Windhoek origin: AS37201 mnt-by: MAINT-AS2905 changed: cnocisp.za [at] mtn.com 20180928 #13:00:37Z source: RADB last-modified: 2023-11-13T15:54:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source