These entries are queried from radb.net using whois, you can try my project getting these.
:AS60453 route: 89.33.107.0/24 descr: IMPULS CONSTRUCT SRL origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2015-02-27T06:47:11Z last-modified: 2015-02-27T06:47:11Z 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: 89.42.108.0/23 descr: IMPULS CONSTRUCT SRL origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2014-02-06T09:11:50Z last-modified: 2014-02-06T09:11:50Z 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: 89.43.79.0/24 descr: IMPULS CONSTRUCT SRL origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2016-01-07T10:50:37Z last-modified: 2016-01-07T10:50:37Z 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: 185.128.96.0/22 descr: Impuls Construct origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2015-12-04T12:21:55Z last-modified: 2015-12-04T12:21:55Z 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: 185.197.149.0/24 origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT mnt-by: ro-impuls-1-mnt mnt-by: lir-ro-impuls2-1-MNT created: 2021-08-11T16:17:12Z last-modified: 2021-08-11T16:17:12Z 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: 195.62.51.0/24 origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT mnt-by: lir-ro-impuls3-1-MNT mnt-by: ro-impuls-1-mnt mnt-by: lir-ro-impuls2-1-MNT created: 2023-07-30T14:02:18Z last-modified: 2023-07-30T14:02:18Z 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: 213.170.208.0/22 origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2018-11-28T17:52:28Z last-modified: 2018-11-28T17:52:28Z 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: 213.170.208.0/24 origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2018-11-28T18:04:40Z last-modified: 2018-11-28T18:04:40Z 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 route: 213.170.209.0/24 origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2018-11-28T18:04:41Z last-modified: 2018-11-28T18:04:41Z 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: 213.170.210.0/24 origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2018-11-28T18:04:41Z last-modified: 2018-11-28T18:04:41Z 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: 213.170.211.0/24 origin: AS60453 mnt-by: IMPULS-CONSTRUCT-MNT created: 2018-11-28T18:04:41Z last-modified: 2018-11-28T18:04:41Z 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 route6: 2a06:cec0::/29 origin: AS60453 mnt-by: ro-impuls-1-mnt created: 2017-10-03T12:54:22Z last-modified: 2017-10-03T12:54:22Z 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: not_found # No ROAs found, or RPKI validation not enabled for source