These entries are queried from radb.net using whois, you can try my project getting these.
:AS204284 route: 159.12.190.0/23 origin: AS204284 mnt-by: NESTEC-MNT created: 2021-10-11T08:43:11Z last-modified: 2021-10-11T08:43:11Z source: RIPE 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: 159.12.190.0/24 origin: AS204284 descr: Proxy route remarks: Proxy route mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20221123 source: RADB last-modified: 2023-11-13T16:13:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 159.12.192.0/20 descr: Nestle APAC DataCentre descr: Singapore org: ORG-NOSW1-RIPE origin: AS204284 mnt-by: NESTEC-MNT created: 2016-02-10T06:56:33Z last-modified: 2016-02-10T14:56:33Z source: RIPE 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