These entries are queried from radb.net using whois, you can try my project getting these.
:AS5517 route: 159.25.0.0/16 descr: CSL origin: AS5517 mnt-by: CSL-MNT created: 1970-01-01T00:00:00Z last-modified: 2004-08-13T13:43:55Z 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: 159.25.255.0/24 descr: CSL origin: AS5517 mnt-by: CSL-MNT created: 2009-12-07T14:01:45Z last-modified: 2009-12-07T14:01:45Z 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: valid route: 194.176.0.0/19 descr: CSL origin: AS5517 mnt-by: CSL-MNT created: 1970-01-01T00:00:00Z last-modified: 2004-08-13T13:52:10Z 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: 194.180.79.0/24 descr: Personal und Organisation, Stadt Hamm origin: AS5517 mnt-by: VT-MNT created: 1970-01-01T00:00:00Z last-modified: 2012-03-20T11:00:32Z 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: 194.245.0.0/16 descr: DE-CSL-GMBH-PA origin: AS5517 mnt-by: CSL-MNT created: 1970-01-01T00:00:00Z last-modified: 2004-08-13T13:41:22Z 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: 2a01:4fc0::/32 descr: CSL GmbH IPv6 Network origin: AS5517 mnt-by: CSL-MNT created: 2012-05-31T09:34:16Z last-modified: 2012-05-31T09:34:16Z 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: 2a01:4fc0::/34 origin: AS5517 mnt-by: CSL-MNT created: 2019-11-14T13:31:40Z last-modified: 2019-11-14T13:31:40Z 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: 2a01:4fc0:1000::/48 descr: CSL GmbH IPv6 Onsite origin: AS5517 mnt-by: CSL-MNT created: 2012-05-31T10:07:31Z last-modified: 2012-05-31T10:07:31Z 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: 2a01:4fc0:4000::/34 origin: AS5517 mnt-by: CSL-MNT created: 2019-11-14T13:32:04Z last-modified: 2019-11-14T13:32:04Z 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 route6: 2a01:4fc0:8000::/34 origin: AS5517 mnt-by: CSL-MNT created: 2019-11-14T13:32:31Z last-modified: 2019-11-14T13:32:31Z 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: 2a01:4fc0:8000::/48 descr: CSL GmbH IPv6 Transit origin: AS5517 mnt-by: CSL-MNT created: 2012-05-31T10:09:32Z last-modified: 2012-05-31T10:09:32Z 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: 2a01:4fc0:c000::/34 origin: AS5517 mnt-by: CSL-MNT created: 2019-11-14T13:32:50Z last-modified: 2019-11-14T13:32:50Z 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