These entries are queried from radb.net using whois, you can try my project getting these.
:AS27264 route: 69.27.87.8/29 descr: new prefix for Bristol origin: AS27264 mnt-by: BRISTOL-MNT changed: matt.quinones [at] level3.com 20110601 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:1900:224c::/48 descr: MI-Connection origin: AS27264 mnt-by: BRISTOL-MNT changed: mark.rounds [at] level3.com 20120326 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source