These entries are queried from radb.net using whois, you can try my project getting these.
:AS57319 route: 193.19.168.0/22 descr: JSC "Tander" origin: AS57319 notify: krasnoperov_as [at] magnit.ru mnt-by: ROSNIIROS-MNT created: 2011-09-23T09:44:54Z last-modified: 2017-06-16T10:04:15Z 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: 193.19.168.0/24 descr: CJSC "Tander" origin: AS57319 mnt-by: TANDER-MNT created: 2011-11-09T10:59:26Z last-modified: 2011-11-09T10:59:26Z 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: 193.19.169.0/24 descr: CJSC "Tander" origin: AS57319 mnt-by: TANDER-MNT created: 2011-09-26T11:06:20Z last-modified: 2011-09-26T11:06:20Z 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: 193.19.170.0/24 descr: CJSC "Tander" origin: AS57319 mnt-by: TANDER-MNT created: 2011-09-27T07:00:12Z last-modified: 2011-09-27T07:00:12Z 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: 193.19.171.0/24 descr: CJSC "Tander" origin: AS57319 mnt-by: TANDER-MNT created: 2011-10-06T09:20:22Z last-modified: 2011-10-06T09:20:22Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:678:4ac::/48 descr: JSC "Tander" origin: AS57319 notify: krasnoperov_as [at] magnit.ru mnt-by: ROSNIIROS-MNT created: 2017-06-15T14:38:18Z last-modified: 2017-06-16T10:04:15Z 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