These entries are queried from radb.net using whois, you can try my project getting these.
:AS39728 route: 91.217.4.0/23 origin: AS39728 mnt-by: ARTA-MNT created: 2013-08-28T08:53:32Z last-modified: 2023-06-21T15:04:22Z 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: valid route: 176.113.224.0/19 descr: Arta Ltd origin: AS39728 mnt-by: ARTA-MNT mnt-by: LUGANET-MNT created: 2012-04-11T06:19:37Z last-modified: 2012-04-11T06:19:37Z 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: valid route: 178.214.160.0/19 origin: AS39728 mnt-by: ps79-mnt mnt-by: mnt-ru-likhno-1 created: 2020-11-09T14:30:01Z last-modified: 2020-11-09T14:30:01Z 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: valid route: 178.216.232.0/21 origin: AS39728 mnt-by: ps79-mnt mnt-by: ARTA-MNT mnt-by: mafl-mnt created: 2018-06-27T12:04:57Z last-modified: 2018-06-27T12:04:57Z 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: valid route: 185.149.196.0/22 origin: AS39728 mnt-by: ps79-mnt mnt-by: mafl-mnt created: 2018-05-04T06:07:22Z last-modified: 2018-05-04T06:07:22Z 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: valid route: 194.31.152.0/22 origin: AS39728 mnt-by: ps79-mnt mnt-by: ARTA-MNT mnt-by: mafl-mnt created: 2019-04-20T08:51:07Z last-modified: 2019-04-20T08:51:37Z 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: 194.31.153.0/24 origin: AS39728 mnt-by: ps79-mnt mnt-by: mnt-ru-likhno-1 mnt-by: ARTA-MNT mnt-by: mafl-mnt created: 2019-11-26T04:59:03Z last-modified: 2019-11-26T04:59:03Z 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: 194.31.154.0/24 origin: AS39728 mnt-by: ps79-mnt mnt-by: mnt-ru-likhno-1 mnt-by: ARTA-MNT mnt-by: mafl-mnt created: 2019-11-26T04:56:41Z last-modified: 2019-11-26T04:56:41Z 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: 194.31.155.0/24 origin: AS39728 mnt-by: ps79-mnt mnt-by: mnt-ru-likhno-1 mnt-by: ARTA-MNT created: 2019-11-26T04:59:53Z last-modified: 2019-11-26T04:59:53Z 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: 2a07:6900::/48 origin: AS39728 mnt-by: ps79-mnt mnt-by: ARTA-MNT mnt-by: mafl-mnt created: 2018-05-29T06:44:43Z last-modified: 2018-05-29T06:44:43Z 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: valid