These entries are queried from radb.net using whois, you can try my project getting these.
:AS398243 route: 192.52.192.0/24 origin: AS398243 descr: Proxy route for Holmes Electric, Inc d/b/a Holmes Security. mnt-by: MAINT-AS2711 changed: walker.white [at] segra.com 20191227 #20:44:23Z source: RADB last-modified: 2023-11-13T15:59:23Z rpki-ov-state: valid route: 192.52.192.0/24 origin: AS398243 descr: Holmes Electric Inc. admin-c: ASNET4-ARIN tech-c: ASNET4-ARIN mnt-by: MNT-HE-523 created: 2021-04-20T15:01:37Z last-modified: 2021-04-20T15:01:37Z source: ARIN rpki-ov-state: valid