These entries are queried from radb.net using whois, you can try my project getting these.
:AS12536 route: 193.58.198.0/23 descr: Allegro Networks UK origin: AS12536 mnt-by: AS12536-MNT mnt-by: BSOCOM-MNT created: 2013-11-05T11:00:32Z last-modified: 2022-07-08T15:41:10Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 212.121.32.0/19 descr: Allegro Networks UK origin: AS12536 mnt-by: AS12536-MNT mnt-by: BSOCOM-MNT created: 1970-01-01T00:00:00Z last-modified: 2022-07-08T15:43:58Z 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: 212.121.32.0/23 descr: Edge-IX Ltd origin: AS12536 mnt-by: AS12536-MNT mnt-by: BSOCOM-MNT mnt-by: IXREACH-MNT created: 2010-12-13T13:39:28Z last-modified: 2022-07-11T12:47:05Z 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: 212.121.36.0/24 descr: MaNAP Public LAN origin: AS12536 mnt-by: AS12536-MNT mnt-by: BSOCOM-MNT org: ORG-MTMN1-RIPE created: 2002-09-02T11:52:34Z last-modified: 2022-07-08T15:42:42Z 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: 212.121.40.0/24 descr: MaNAP Public Peering origin: AS12536 mnt-by: AS12536-MNT mnt-by: BSOCOM-MNT org: ORG-MTMN1-RIPE created: 2004-02-11T15:47:34Z last-modified: 2022-07-08T15:43:29Z 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: valid route: 212.121.41.0/24 descr: NWIX Group Ltd origin: AS12536 mnt-by: AS12536-MNT mnt-by: BSOCOM-MNT created: 2008-11-12T13:19:38Z last-modified: 2022-07-08T15:43:46Z 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: valid