These entries are queried from radb.net using whois, you can try my project getting these.
:AS11508 route: 23.29.58.0/24 descr: LL-VLTR origin: AS11508 mnt-by: MAINT-LIONLINK-NET source: nttcom last-modified: 2023-01-08T00:57:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 23.29.58.0/24 origin: AS11508 descr: 2093 Philadelphia Pike Ste 6509 Claymont DE 19703-2424 United States admin-c: NOC12535-ARIN tech-c: NOC12535-ARIN mnt-by: MNT-PL-31 created: 2023-01-08T01:20:30Z last-modified: 2023-01-08T01:20:30Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 44.31.198.0/24 origin: AS11508 descr: NF9K admin-c: SMITH5996-ARIN tech-c: SMITH5996-ARIN notify: hostmaster [at] ardc.net mnt-by: MAINT-ARDC changed: chris [at] ardc.net 20230514 #16:59:41Z source: RADB last-modified: 2023-11-13T16:17:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.116.84.0/24 origin: AS11508 descr: 2093 Philadelphia Pike Ste 6509 Claymont DE 19703-2424 United States admin-c: NOC12535-ARIN tech-c: NOC12535-ARIN mnt-by: MNT-PL-31 created: 2023-01-08T01:20:08Z last-modified: 2023-01-08T01:20:08Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.116.84.0/24 descr: LL-VLTR origin: AS11508 mnt-by: MAINT-LIONLINK-NET source: nttcom last-modified: 2023-01-08T01:02:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source