These entries are queried from radb.net using whois, you can try my project getting these.
:AS400555 route: 23.135.200.0/24 origin: AS400555 descr: Isogram V4 NAT via https://isogram.org admin-c: NETEN32-ARIN tech-c: NETEN32-ARIN mnt-by: MNT-IL-862 created: 2022-04-29T19:10:09Z last-modified: 2022-04-29T19:10:09Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.168.204.0/24 origin: AS400555 descr: Isogram V4 via https://isogram.org - Fremont, CA admin-c: NETEN32-ARIN tech-c: NETEN32-ARIN mnt-by: MNT-IL-862 created: 2023-05-02T04:27:16Z last-modified: 2023-05-02T04:27:16Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:c2c0::/32 origin: AS400555 descr: Isogram, LLC admin-c: NETEN32-ARIN tech-c: NETEN32-ARIN mnt-by: MNT-IL-862 created: 2022-04-22T18:46:10Z last-modified: 2022-04-22T18:46:10Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source