These entries are queried from radb.net using whois, you can try my project getting these.
:AS197729 route: 31.24.168.0/21 descr: Binect GmbH origin: AS197729 mnt-by: TWENTYONECLOUD-MNT created: 2011-04-07T21:53:00Z last-modified: 2019-12-18T16:11:41Z 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: 91.208.83.0/24 descr: LSE Leading Security Experts GmbH PI Space origin: AS197729 mnt-by: TWENTYONECLOUD-MNT created: 2013-01-29T21:44:47Z last-modified: 2014-09-01T16:25:06Z 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 route6: 2a02:5a80::/29 descr: 21Cloud GmbH origin: AS197729 mnt-by: TWENTYONECLOUD-MNT created: 2013-01-29T14:21:46Z last-modified: 2014-09-01T16:27:04Z 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