These entries are queried from radb.net using whois, you can try my project getting these.
:AS328176 route: 102.128.172.0/22 descr: ITTX-SUB origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx.co.za 20180109 source: AFRINIC rpki-ov-state: valid route: 102.128.172.0/24 descr: ITTX-MGMT-3 origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx.co.za 20180109 changed: *** [at] ittx-telecoms.co.za 20200730 source: AFRINIC rpki-ov-state: valid route: 102.128.173.0/24 descr: ITTX-SUB-3 origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx.co.za 20180109 changed: *** [at] ittx-telecoms.co.za 20200730 source: AFRINIC rpki-ov-state: valid route: 102.128.174.0/24 descr: ITTX-SUB-4 origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx.co.za 20180109 changed: *** [at] ittx-telecoms.co.za 20200730 source: AFRINIC rpki-ov-state: valid route: 102.128.175.0/24 descr: ITTX-SUB-5 origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx.co.za 20180109 changed: *** [at] ittx-telecoms.co.za 20200730 source: AFRINIC rpki-ov-state: valid route: 160.19.36.0/22 origin: AS328176 mnt-by: ITTX-MNT mnt-by: MNT-ITTX created: 2017-06-27T08:40:28Z last-modified: 2018-09-04T18:51:41Z 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: 160.19.36.0/22 descr: ITTX origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx-telecoms.co.za 20170627 source: AFRINIC rpki-ov-state: valid route: 160.19.36.0/24 descr: ITTX-MGMT origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx-telecoms.co.za 20170624 source: AFRINIC rpki-ov-state: valid route: 160.19.36.0/24 origin: AS328176 mnt-by: ITTX-MNT mnt-by: MNT-ITTX created: 2017-06-26T18:22:16Z last-modified: 2018-09-04T18:51:38Z 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: 160.19.37.0/24 descr: ITTX-SUB-1 origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx-telecoms.co.za 20170624 source: AFRINIC rpki-ov-state: valid route: 160.19.37.0/24 origin: AS328176 mnt-by: ITTX-MNT mnt-by: MNT-ITTX created: 2017-06-26T18:22:47Z last-modified: 2018-09-04T18:51:39Z 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: 160.19.38.0/24 origin: AS328176 mnt-by: ITTX-MNT mnt-by: MNT-ITTX created: 2017-06-26T18:23:09Z last-modified: 2018-09-04T18:51:39Z 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: 160.19.38.0/24 descr: ITTX-SUB-2 origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx-telecoms.co.za 20170624 source: AFRINIC rpki-ov-state: valid route: 160.19.39.0/24 descr: ITTX-MGMT-2 origin: AS328176 mnt-by: ITTX-MNT changed: *** [at] ittx.co.za 20180109 changed: *** [at] ittx-telecoms.co.za 20200730 source: AFRINIC rpki-ov-state: valid route: 160.19.39.0/24 origin: AS328176 mnt-by: ITTX-MNT mnt-by: MNT-ITTX created: 2017-06-26T18:23:23Z last-modified: 2018-09-04T18:51:40Z 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