These entries are queried from radb.net using whois, you can try my project getting these.
:AS13088 route: 141.96.0.0/16 descr: ADTS origin: AS13088 mnt-by: BE-CCBGKB-PFA created: 2011-03-14T12:21:49Z last-modified: 2013-07-09T10:40:04Z 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: 156.133.0.0/16 origin: AS13088 mnt-by: BE-CCBGKB-PFA mnt-by: DEXIA-BIL-MNTNER mnt-by: DEXIA-MNTNER created: 2022-12-07T13:54:56Z last-modified: 2022-12-07T13:54:56Z 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