These entries are queried from radb.net using whois, you can try my project getting these.
:AS50334 route: 31.148.250.0/23 origin: AS50334 mnt-by: GrGARANT-MNT mnt-by: RIPE-DB-MNT created: 2020-11-17T15:37:04Z last-modified: 2020-11-17T15:37:04Z 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: 91.149.160.0/24 descr: DELEGATED origin: AS50334 mnt-by: BYGIS-MNT created: 2011-09-08T14:07:02Z last-modified: 2011-09-08T14:07:02Z 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: 91.149.161.0/24 descr: DELEGATED origin: AS50334 mnt-by: BYGIS-MNT created: 2011-06-17T06:58:45Z last-modified: 2011-06-17T06:58:45Z 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: 93.125.54.0/24 descr: Garant-Grodno route origin: AS50334 mnt-by: BYGIS-MNT created: 2010-02-16T17:58:47Z last-modified: 2010-02-16T17:58:47Z 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: 178.172.179.0/24 origin: AS50334 mnt-by: BYGIS-MNT created: 2023-11-02T05:31:19Z last-modified: 2023-11-02T05:31:19Z 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: 178.172.180.0/24 descr: Business network jv for Garant-Grodno origin: AS50334 mnt-by: BYGIS-MNT created: 2010-10-23T15:46:04Z last-modified: 2010-10-23T15:46:04Z 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: 213.184.235.0/24 descr: DELEGATED origin: AS50334 mnt-by: BYGIS-MNT created: 2011-04-19T14:04:20Z last-modified: 2011-04-19T14:04:20Z 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 route6: 2a04:2e80:1::/48 origin: AS50334 mnt-by: BYGIS-MNT created: 2022-08-09T10:19:29Z last-modified: 2022-08-09T10:19:29Z 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