These entries are queried from radb.net using whois, you can try my project getting these.
:AS26668 route: 8.30.204.0/24 descr: 5400191 origin: AS26668 mnt-by: AFFIRMEDSYS-MNT changed: barry.wahrmann [at] level3.com 20120308 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.70.165.0/24 descr: Routed Created on Behalf of Matrix Integration Technology origin: AS26668 mnt-by: MAINT-AS7459 changed: ipservices [at] grandecom.com 20081103 #14:56:56Z changed: ipservices [at] grandecom.com 20081103 #16:12:31Z source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.70.165.0/24 descr: 3078164 origin: AS26668 mnt-by: MNT-HAGEN changed: donald.baker [at] level3.com 20081218 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.251.205.0/24 descr: 5400191 origin: AS26668 mnt-by: AFFIRMEDSYS-MNT changed: barry.wahrmann [at] level3.com 20120308 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.54.136.0/24 descr: 5400191 origin: AS26668 mnt-by: AFFIRMEDSYS-MNT changed: barry.wahrmann [at] level3.com 20120308 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.15.8.0/21 descr: 5400191 origin: AS26668 mnt-by: AFFIRMEDSYS-MNT changed: barry.wahrmann [at] level3.com 20120308 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.62.120.0/21 descr: 5400191 origin: AS26668 mnt-by: AFFIRMEDSYS-MNT changed: barry.wahrmann [at] level3.com 20120308 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.152.96.0/23 descr: TT6308079 origin: AS26668 notify: network.eng [at] affirmedsystems.com mnt-by: AFFIRMEDSYS-MNT changed: palmatier.wayne [at] level3.com 20130209 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.71.208.0/21 descr: 5400191 origin: AS26668 mnt-by: AFFIRMEDSYS-MNT changed: barry.wahrmann [at] level3.com 20120308 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source