These entries are queried from radb.net using whois, you can try my project getting these.
:AS17311 route: 161.136.0.0/16 descr: TelCove BGP Customer netblock tech-c: TC1-LEVEL3 origin: AS17311 member-of: rs-19094-CUSTOMER remarks: Erie County Medical Center mnt-by: MAINT-AS19094 changed: frank.delung [at] telcove.com 20061010 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.136.0.0/16 descr: Erie County Medical Center origin: AS17311 mnt-by: MAINT-AS27506 changed: rhinst [at] lightower.com 20160902 #18:57:08Z source: RADB last-modified: 2023-11-13T15:49:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source