These entries are queried from radb.net using whois, you can try my project getting these.
:AS51273 route: 81.163.211.0/24 origin: AS51273 mnt-by: MNT-FREENETUA mnt-by: AM30089-MNT created: 2021-05-26T16:09:47Z last-modified: 2021-05-26T16:09:47Z 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: 81.163.212.0/24 origin: AS51273 mnt-by: MNT-FREENETUA mnt-by: AM30089-MNT created: 2021-05-26T16:08:11Z last-modified: 2021-05-26T16:08:11Z 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: valid route: 81.163.214.0/24 origin: AS51273 mnt-by: MNT-FREENETUA mnt-by: AM30089-MNT created: 2021-05-28T08:53:55Z last-modified: 2021-05-28T08:53:55Z 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: 193.160.224.0/22 descr: SKYNET-UA-NET-20100813 origin: AS51273 mnt-by: SKYNET-UA-MNT created: 2010-08-13T13:32:44Z last-modified: 2010-08-13T13:32:44Z 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: 193.160.224.0/24 descr: SKYNET-UA-NET-20110325 origin: AS51273 mnt-by: SKYNET-UA-MNT created: 2011-03-25T12:30:55Z last-modified: 2011-03-25T12:30:55Z 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: 193.160.225.0/24 descr: SKYNET-UA-NET-20110325 origin: AS51273 mnt-by: SKYNET-UA-MNT created: 2011-03-25T12:30:46Z last-modified: 2011-03-25T12:30:46Z 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: 193.160.226.0/24 descr: SKYNET-UA-NET-20110325 origin: AS51273 mnt-by: SKYNET-UA-MNT created: 2011-03-25T12:16:41Z last-modified: 2011-03-25T12:16:41Z 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: 193.160.227.0/24 descr: SKYNET-UA-NET-20110325 origin: AS51273 mnt-by: SKYNET-UA-MNT created: 2011-03-25T12:28:10Z last-modified: 2011-03-25T12:28:10Z 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: 2001:67c:2f48::/48 descr: SKYNET-UA-NET-20160127 origin: AS51273 mnt-by: SKYNET-UA-MNT created: 2016-01-27T13:02:53Z last-modified: 2016-01-27T13:02:53Z 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