These entries are queried from radb.net using whois, you can try my project getting these.
:AS57005 route: 91.229.216.0/22 descr: SPECTR-NET origin: AS57005 mnt-by: AS3261-MNT mnt-by: AS57005-MNT created: 2011-07-06T08:31:57Z last-modified: 2013-04-26T13:57:11Z 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: 91.229.216.0/23 descr: SPECTR-NET-216 origin: AS57005 mnt-by: AS57005-MNT mnt-by: AS3261-MNT created: 2013-07-30T07:48:20Z last-modified: 2013-07-30T08:09:30Z 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: 91.229.216.0/24 descr: SPECTR-NET-216 origin: AS57005 mnt-by: AS41039-MNT mnt-by: AS57005-MNT created: 2020-02-06T08:21:26Z last-modified: 2020-02-06T08:28:45Z 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: 91.229.217.0/24 descr: SPECTR-NET-217 origin: AS57005 mnt-by: AS41039-MNT mnt-by: AS57005-MNT created: 2020-02-06T08:27:38Z last-modified: 2020-02-06T08:28:07Z 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: 91.229.218.0/24 descr: SPECTR-NET-218 origin: AS57005 mnt-by: AS41039-MNT mnt-by: AS57005-MNT created: 2020-02-06T08:22:18Z last-modified: 2020-02-06T08:26:07Z 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