These entries are queried from radb.net using whois, you can try my project getting these.
:AS55199 route: 192.31.15.0/24 descr: Peer1 Route Object origin: AS55199 mnt-by: MAINT-AS13768 changed: noc [at] peer1.com 20140804 #22:56:57Z source: RADB last-modified: 2023-11-13T15:46:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.206.57.0/24 descr: Peer1 Route Object origin: AS55199 mnt-by: maint-as13768 changed: support [at] peer1.com 20140512 source: RADB last-modified: 2023-11-13T15:46:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.64.20.0/22 descr: Peer1 Route Object origin: AS55199 mnt-by: maint-as13768 changed: support [at] peer1.com 20140512 source: RADB last-modified: 2023-11-13T15:46:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.64.22.0/24 descr: Peer1 Route Object origin: AS55199 mnt-by: maint-as13768 changed: support [at] peer1.com 20140525 source: RADB last-modified: 2023-11-13T15:46:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.64.23.0/24 descr: Peer1 Route Object origin: AS55199 mnt-by: maint-as13768 changed: support [at] peer1.com 20140525 source: RADB last-modified: 2023-11-13T15:46:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source