These entries are queried from radb.net using whois, you can try my project getting these.
:AS328216 route: 102.141.96.0/20 descr: Cust_IP origin: AS328216 mnt-by: FA3-MNT changed: *** [at] firstream.co.za 20180625 source: AFRINIC rpki-ov-state: valid route: 102.141.96.0/20 org: ORG-FA838-RIPE origin: AS328216 mnt-by: MNT-LG-RIPE created: 2018-06-21T07:35:07Z last-modified: 2018-09-04T19:26:59Z source: RIPE-NONAUTH 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: 156.0.192.0/22 descr: FS-RT origin: AS328216 mnt-by: FA3-MNT changed: *** [at] firstream.co.za 20170830 source: AFRINIC rpki-ov-state: valid route: 156.0.192.0/22 org: ORG-FA838-RIPE origin: AS328216 mnt-by: MNT-LG-RIPE created: 2017-09-03T07:46:30Z last-modified: 2018-09-04T18:56:17Z source: RIPE-NONAUTH 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