These entries are queried from radb.net using whois, you can try my project getting these.
:AS398813 route: 166.66.0.0/16 origin: AS398813 descr: MILL holes: 166.66.202.0/24 admin-c: MILLI269-ARIN tech-c: MILLI269-ARIN mnt-by: MAINT-AS22192 changed: lparke [at] passhe.edu 20230727 #15:21:20Z source: RADB last-modified: 2023-11-13T16:17:50Z rpki-ov-state: valid route: 192.206.29.0/24 origin: AS398813 descr: MILL admin-c: MILLI269-ARIN tech-c: MILLI269-ARIN mnt-by: MAINT-AS22192 changed: lparke [at] passhe.edu 20220318 #17:46:59Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: valid route: 204.235.168.0/23 origin: AS398813 descr: MILL admin-c: MILLI269-ARIN tech-c: MILLI269-ARIN mnt-by: MAINT-AS22192 changed: lparke [at] passhe.edu 20220318 #17:51:07Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: valid route: 204.235.168.0/24 descr: Millersville University proxy object origin: AS398813 notify: ce-ipadmin [at] us.ntt.net mnt-by: MAINT-NTTCOM-BB changed: celliott [at] gin.ntt.net 20240213 source: NTTCOM last-modified: 2024-02-13T15:27:37Z rpki-ov-state: valid route6: 2607:2240:5000::/36 origin: AS398813 descr: MILL admin-c: MILLI269-ARIN tech-c: MILLI269-ARIN mnt-by: MAINT-AS22192 changed: lparke [at] passhe.edu 20230406 #20:34:16Z source: RADB last-modified: 2023-11-13T16:15:41Z rpki-ov-state: valid