These entries are queried from radb.net using whois, you can try my project getting these.
:AS135147 route: 23.191.192.0/24 origin: AS135147 descr: root-ipv4 mnt-by: MAINT-AS32708 changed: noc [at] rootnetworks.com 20220324 #10:47:34Z source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df1:600::/48 descr: Root Limited origin: AS135147 mnt-by: MAINT-RGHK-HK last-modified: 2022-05-23T06:12:28Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source