These entries are queried from radb.net using whois, you can try my project getting these.
:AS5433 route: 91.151.176.0/20 descr: ROKSON-NW descr: Network of Science, Education and descr: Culture for St.Petersburg origin: AS5433 mnt-by: VEROLINE-MNT created: 2011-10-04T09:54:19Z last-modified: 2011-10-04T09:54:19Z 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: valid route: 91.151.186.0/24 descr: ROKSON-NW descr: Network of Science, Education and descr: Culture for St.Petersburg origin: AS5433 mnt-by: VEROLINE-MNT created: 2021-07-20T10:05:43Z last-modified: 2021-07-20T10:05:43Z 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: valid route: 91.151.189.0/24 descr: ROKSON-NW descr: Network of Science, Education and descr: Culture for St.Petersburg origin: AS5433 mnt-by: VEROLINE-MNT created: 2012-08-09T09:59:48Z last-modified: 2012-08-09T09:59:48Z 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: valid route: 91.151.190.0/24 descr: ROKSON-NW descr: Network of Science, Education and descr: Culture for St.Petersburg origin: AS5433 mnt-by: VEROLINE-MNT created: 2017-01-11T12:39:47Z last-modified: 2017-01-11T12:39:47Z 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: 195.14.12.0/24 descr: SPb Scientific Center RAS origin: AS5433 notify: denis [at] noc.nw.ru mnt-by: ROSNIIROS-MNT created: 2006-01-18T11:37:05Z last-modified: 2006-01-18T11:37:05Z 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: 2a01:8380::/32 descr: ROKSON-NW descr: Network of Science, Education and descr: Culture for St.Petersburg origin: AS5433 mnt-by: VEROLINE-MNT created: 2014-06-09T12:36:22Z last-modified: 2014-06-09T12:36:22Z 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: valid