These entries are queried from radb.net using whois, you can try my project getting these.
:AS47478 route: 5.188.52.0/22 origin: AS47478 mnt-by: MNT-PINSUPPORT created: 2020-02-25T08:02:58Z last-modified: 2020-02-25T08:02:58Z 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: 77.247.240.0/21 descr: MSTN origin: AS47478 mnt-by: MNT-MSTN created: 2011-10-28T07:29:02Z last-modified: 2011-12-27T10:18:29Z 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: 93.174.128.0/21 descr: MSTN origin: AS47478 mnt-by: MNT-MSTN created: 2008-07-30T08:27:29Z last-modified: 2011-12-27T10:17:47Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.129.144.0/22 descr: MSTN origin: AS47478 mnt-by: MNT-MSTN created: 2015-12-02T21:01:54Z last-modified: 2015-12-02T21:01:54Z 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 route6: 2a03:1b00::/32 descr: MSTN IPv6 Block origin: AS47478 mnt-by: MNT-MSTN created: 2012-08-16T10:31:51Z last-modified: 2012-08-16T10:31:51Z 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