These entries are queried from radb.net using whois, you can try my project getting these.
:AS40633 route: 199.36.28.0/22 descr: Los Angeles Internet Exchange origin: AS40633 notify: laix-radb [at] nocnetworks.org mnt-by: MAINT-AS40633 changed: laix-radb [at] nocnetworks.org 20090409 #18:35:05Z source: RADB last-modified: 2023-11-13T15:53:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.233.28.0/22 descr: Los Angeles Internet Exchange origin: AS40633 notify: laix-radb [at] nocnetworks.org mnt-by: MAINT-AS40633 changed: laix-radb [at] nocnetworks.org 20130314 #17:18:33Z source: RADB last-modified: 2023-11-13T15:53:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.110.8.0/21 descr: Proxy object by LAIX for Winston origin: AS40633 notify: laix-radb [at] nocnetworks.org mnt-by: MAINT-AS40633 changed: laix-radb [at] nocnetworks.org 20090409 #18:44:56Z source: RADB last-modified: 2023-11-13T15:53:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source