These entries are queried from radb.net using whois, you can try my project getting these.
:AS57016 route: 31.135.208.0/21 descr: ISTV First Network origin: AS57016 mnt-by: MNT-ISTV created: 2011-07-22T11:31:53Z last-modified: 2011-07-22T11:31:53Z 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: 31.148.160.0/21 origin: AS57016 mnt-by: MNT-ISTV mnt-by: RIPE-DB-MNT created: 2018-05-01T10:43:34Z last-modified: 2018-05-01T10:43:34Z 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: 95.46.80.0/21 origin: AS57016 mnt-by: RIPE-DB-MNT mnt-by: MNT-ISTV created: 2019-04-10T06:51:13Z last-modified: 2019-04-10T06:51:13Z 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: 95.46.88.0/21 descr: Inform-Service TV Ltd. origin: AS57016 mnt-by: MNT-ISTV mnt-by: RIPE-DB-MNT created: 2016-02-21T17:38:04Z last-modified: 2016-11-25T14:41:30Z 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