These entries are queried from radb.net using whois, you can try my project getting these.
:AS20049 route: 8.22.120.0/24 descr: LinkedIn/Level3 2029 Stierlin ct Mountain View, CA 94043 origin: AS20049 mnt-by: MAINT-AS20049 changed: zali [at] linkedin.com 20130130 #22:32:34Z source: RADB last-modified: 2023-11-13T15:44:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.52.242.0/24 descr: PNAP-LAX linkedin origin: AS20049 mnt-by: MAINT-AS1828 changed: dchase [at] internap.com 20100730 source: RADB last-modified: 2023-11-13T16:14:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source