These entries are queried from radb.net using whois, you can try my project getting these.
:AS399273 route: 45.42.225.0/24 origin: AS399273 descr: 8 Church Street St George's St George GD Grenada admin-c: HOSTE38-ARIN tech-c: MIB4-ARIN tech-c: SLD8-ARIN mnt-by: MNT-GCBL-11 created: 2021-04-05T23:34:54Z last-modified: 2024-01-23T17:37:14Z source: ARIN rpki-ov-state: valid route6: 2620:a2:e000::/48 origin: AS399273 descr: 8 Church Street St George's St George GD Grenada admin-c: HOSTE38-ARIN tech-c: MIB4-ARIN tech-c: SLD8-ARIN mnt-by: MNT-GCBL-11 created: 2022-01-12T00:09:31Z last-modified: 2024-01-23T17:37:14Z source: ARIN rpki-ov-state: valid