These entries are queried from radb.net using whois, you can try my project getting these.
:AS5540 route: 138.134.0.0/16 origin: AS5540 mnt-by: NV-MNT-RIPE mnt-by: IEC-MNT created: 2021-04-08T08:05:27Z last-modified: 2021-04-08T08:06:07Z 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: 138.134.10.0/24 origin: AS5540 mnt-by: NV-MNT-RIPE created: 2021-04-21T06:39:52Z last-modified: 2021-04-21T06:39:52Z 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: 138.134.99.0/24 origin: AS5540 mnt-by: NV-MNT-RIPE mnt-by: IEC-MNT created: 2021-04-08T08:06:58Z last-modified: 2021-04-08T08:07:09Z 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: 138.134.100.0/24 origin: AS5540 mnt-by: NV-MNT-RIPE mnt-by: IEC-MNT created: 2021-04-08T08:07:37Z last-modified: 2021-04-08T08:07:46Z 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: 138.134.101.0/24 origin: AS5540 mnt-by: NV-MNT-RIPE mnt-by: IEC-MNT created: 2021-04-08T08:08:09Z last-modified: 2021-04-08T08:08:16Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.134.102.0/24 origin: AS5540 mnt-by: NV-MNT-RIPE mnt-by: IEC-MNT created: 2021-04-08T08:08:44Z last-modified: 2021-04-08T08:08:51Z 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