These entries are queried from radb.net using whois, you can try my project getting these.
:AS273568 route: 170.238.212.0/22 origin: AS273568 descr: This is a BR.Digital customer proxy route object that was created because no existing route object with the same origin was found. Please contact bgp [at] br.digital if you have any questions regarding this object. mnt-by: MAINT-AS14840 changed: glcastro [at] br.digital 20221205 #14:31:52Z source: RADB last-modified: 2023-11-13T16:13:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.238.212.0/22 origin: AS273568 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: eduardokro [at] gmail.com mnt-by: MAINT-AS273568 source: TC last-modified: 2023-04-28T18:57:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.238.212.0/23 origin: AS273568 descr: AS273568 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20240102 # 1855Z source: RADB last-modified: 2024-01-02T18:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.238.214.0/23 origin: AS273568 descr: AS273568 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20240102 # 1856Z source: RADB last-modified: 2024-01-02T18:56:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:88e8::/32 origin: AS273568 descr: This is a BR.Digital customer proxy route object that was created because no existing route object with the same origin was found. Please contact bgp [at] br.digital if you have any questions regarding this object. mnt-by: MAINT-AS14840 changed: gacosta [at] br.digital 20220909 #16:07:16Z source: RADB last-modified: 2023-11-13T16:12:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:88e8::/32 origin: AS273568 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: eduardokro [at] gmail.com mnt-by: MAINT-AS273568 source: TC last-modified: 2023-04-28T18:57:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source