These entries are queried from radb.net using whois, you can try my project getting these.
:AS203912 route: 185.172.28.0/22 origin: AS203912 mnt-by: SICRES-MNT created: 2016-10-10T13:02:19Z last-modified: 2017-09-07T12:43:43Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.172.28.0/24 origin: AS203912 mnt-by: SICRES-MNT created: 2022-03-23T10:35:30Z last-modified: 2022-03-23T10:35:30Z 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: 185.172.29.0/24 origin: AS203912 mnt-by: SICRES-MNT created: 2022-03-23T11:10:42Z last-modified: 2022-03-23T11:10:42Z 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: 185.172.30.0/24 origin: AS203912 mnt-by: SICRES-MNT mnt-by: SICRES-MNT created: 2022-03-23T11:11:02Z last-modified: 2022-03-23T11:11:02Z 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: 185.172.31.0/24 origin: AS203912 mnt-by: SICRES-MNT created: 2022-03-23T11:11:28Z last-modified: 2022-03-23T11:11:28Z 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: 188.0.224.0/20 descr: Sicres-PI origin: AS203912 mnt-by: SICRES-MNT created: 2015-10-06T12:11:48Z last-modified: 2015-10-06T12:11:48Z 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: 2a0b:4900::/29 descr: Sicres IPv6 route origin: AS203912 mnt-by: SICRES-MNT created: 2016-10-17T13:14:15Z last-modified: 2016-10-17T13:14:56Z 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