These entries are queried from radb.net using whois, you can try my project getting these.
:AS13147 route: 193.107.37.0/24 descr: Powernet origin: AS13147 mnt-by: MNT-POWERNET created: 2010-02-12T13:20:46Z last-modified: 2010-02-12T13:20:46Z 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: 193.107.38.0/24 descr: Powernet origin: AS13147 mnt-by: MNT-POWERNET created: 2010-02-12T13:20:51Z last-modified: 2010-02-12T13:20:51Z 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 route: 193.107.39.0/24 descr: Powernet origin: AS13147 mnt-by: MNT-POWERNET created: 2010-02-12T13:20:56Z last-modified: 2010-02-12T13:20:56Z 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: 193.228.152.0/24 origin: AS13147 mnt-by: ITD-MNT created: 2017-03-24T08:01:44Z last-modified: 2017-03-24T08:01:44Z 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: 194.153.145.0/24 descr: NetInfo Ltd. descr: 77 "Tsar Asen" Str. descr: Sofia, 1463 descr: Bulgaria origin: AS13147 notify: netadmin [at] mobikom.com notify: milen [at] netinfo.bg mnt-by: AS13147-MNT created: 1970-01-01T00:00:00Z last-modified: 2004-04-20T08:05:12Z 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