These entries are queried from radb.net using whois, you can try my project getting these.
:AS8890 route: 193.0.64.0/18 descr: University of Warsaw Network descr: Warsaw, Poland origin: AS8890 mnt-by: UW-PL mnt-by: ICM-PL created: 2004-12-29T08:06:04Z last-modified: 2011-11-23T15:10:06Z 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: 193.0.64.0/19 origin: AS8890 mnt-by: UW-PL created: 2019-09-16T09:20:46Z last-modified: 2019-09-16T09:20:46Z 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: 193.0.96.0/19 origin: AS8890 mnt-by: UW-PL created: 2019-09-16T09:21:19Z last-modified: 2019-09-16T09:21:19Z 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: 212.87.0.0/20 descr: University of Warsaw Network descr: Warsaw, Poland origin: AS8890 notify: net [at] adm.uw.edu.pl mnt-by: UW-PL mnt-by: ICM-PL created: 2012-05-30T08:34:44Z last-modified: 2012-05-30T08:34:44Z 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: 212.87.0.0/21 origin: AS8890 mnt-by: UW-PL created: 2019-09-16T09:21:39Z last-modified: 2019-09-16T09:21:39Z 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: 212.87.8.0/21 origin: AS8890 mnt-by: UW-PL created: 2019-09-16T09:21:54Z last-modified: 2019-09-16T09:21:54Z 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: 213.135.63.0/24 descr: University of Warsaw descr: Warsaw, Poland origin: AS8890 mnt-by: ICM-PL created: 2010-08-09T12:25:31Z last-modified: 2010-08-09T12:25:31Z 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: 2001:6a0:4000::/34 descr: PL-ICM-UW origin: AS8890 mnt-by: ICM-PL created: 2009-10-19T15:16:25Z last-modified: 2009-10-19T15:16:25Z 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