These entries are queried from radb.net using whois, you can try my project getting these.
:AS3181 route: 5.8.160.0/20 descr: Matrix Mobile, Moscow origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2012-04-27T09:24:22Z last-modified: 2021-11-03T11:37:01Z 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: 5.8.160.0/21 origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2022-12-14T10:08:44Z last-modified: 2022-12-14T10:08:44Z 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: 5.8.168.0/21 origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2022-12-14T10:09:20Z last-modified: 2022-12-14T10:09:20Z 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: 5.8.168.0/23 descr: Proxy-registered for AS7713 customer origin: AS3181 mnt-by: MAINT-AS7713 changed: djimie [at] telin.co.id 20130923 source: RADB last-modified: 2023-11-13T15:56:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 81.95.128.0/23 origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2022-12-14T09:51:46Z last-modified: 2022-12-14T09:51:46Z 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: 81.95.128.0/24 descr: Matrix telecom-Off, Moscow origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2022-12-14T09:44:45Z last-modified: 2022-12-14T09:44:45Z 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: 81.95.129.0/24 descr: Matrix telecom-Cl, Moscow origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2022-12-14T09:51:04Z last-modified: 2022-12-14T09:51:04Z 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: 81.95.141.0/24 descr: Matrix telecom-Cl, Moscow origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2022-12-14T09:55:25Z last-modified: 2022-12-14T09:55:25Z 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: 2a00:e240::/32 descr: Matrix Mobile, Moscow origin: AS3181 mnt-by: lir-ru-matrix-telecom-1-MNT created: 2012-04-27T09:33:43Z last-modified: 2021-11-03T11:37:43Z 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: not_found # No ROAs found, or RPKI validation not enabled for source