These entries are queried from radb.net using whois, you can try my project getting these.
:AS203929 route: 89.37.56.0/24 descr: SC NEXT LEVEL BUSINESS SRL origin: AS203929 mnt-by: ro-nextlevel-1-mnt created: 2016-02-15T13:16:10Z last-modified: 2016-02-15T13:16:10Z 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: 91.199.220.0/24 origin: AS203929 mnt-by: mnt-ro-ntypon-1 created: 2021-05-19T11:14:33Z last-modified: 2021-05-19T11:14:33Z 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: 146.19.147.0/24 origin: AS203929 mnt-by: mnt-ro-ntypon-1 created: 2021-11-16T18:35:54Z last-modified: 2021-11-16T18:35:54Z 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: valid route: 185.124.33.0/24 descr: SC NEXT LEVEL BUSINESS SRL origin: AS203929 mnt-by: ro-nextlevel-1-mnt created: 2015-11-27T10:43:53Z last-modified: 2016-07-31T23:24:30Z 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: 185.124.34.0/24 descr: SC NEXT LEVEL BUSINESS SRL origin: AS203929 mnt-by: ro-nextlevel-1-mnt created: 2015-12-23T15:21:48Z last-modified: 2015-12-23T15:21:48Z 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: 185.124.35.0/24 descr: SC NEXT LEVEL BUSINESS SRL origin: AS203929 mnt-by: ro-nextlevel-1-mnt created: 2016-02-04T08:55:37Z last-modified: 2016-02-04T08:55:37Z 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 route6: 2a0b:2cc0::/48 origin: AS203929 mnt-by: ro-nextlevel-1-mnt created: 2017-09-11T08:10:49Z last-modified: 2017-09-11T08:10:49Z 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