These entries are queried from radb.net using whois, you can try my project getting these.
:AS58309 route: 109.229.0.0/19 origin: AS58309 mnt-by: LANGATE-MNT created: 2021-04-16T12:38:36Z last-modified: 2021-04-16T12:38:36Z 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: 176.120.32.0/19 descr: Langate Ltd origin: AS58309 mnt-by: AS58309-MNT created: 2012-06-22T12:07:50Z last-modified: 2012-06-22T12:07:50Z 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: 185.46.188.0/22 descr: Langate Ltd origin: AS58309 mnt-by: PELE3-MNT created: 2014-03-14T13:30:19Z last-modified: 2014-03-14T13:30:19Z 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: 194.146.136.0/22 descr: Filipets Igor Victorovych. Main block origin: AS58309 mnt-by: PELE3-MNT created: 2021-04-08T19:47:40Z last-modified: 2021-04-08T19:47:40Z 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: 2a01:5fa0::/32 descr: Langate Ltd origin: AS58309 mnt-by: PELE3-MNT mnt-by: AS58309-MNT created: 2017-11-30T14:31:25Z last-modified: 2017-11-30T14:31:25Z 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