These entries are queried from radb.net using whois, you can try my project getting these.
:AS11164 route: 64.57.20.0/23 descr: Internet2 origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20181205 #20:57:23Z last-modified: 2023-11-13T15:55:21Z rpki-ov-state: valid route: 64.57.20.0/24 descr: Internet2 origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20180103 #22:31:42Z last-modified: 2023-11-13T15:52:44Z rpki-ov-state: valid route: 64.57.21.0/24 descr: Internet2 origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20180103 #22:31:42Z last-modified: 2023-11-13T15:52:44Z rpki-ov-state: valid route: 64.57.29.0/24 descr: Internet2 origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20180103 #22:31:42Z last-modified: 2023-11-13T15:52:44Z rpki-ov-state: valid route: 162.252.69.0/24 descr: Internet2 origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20180103 #22:31:42Z last-modified: 2023-11-13T15:52:44Z rpki-ov-state: valid route: 163.253.18.0/24 descr: I2PX Internal origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20211207 last-modified: 2023-11-13T16:09:02Z rpki-ov-state: valid route: 163.253.32.0/24 descr: Internet2 TSG LOSA origin: AS11164 mnt-by: MAINT-AS11537 changed: jbartig [at] internet2.edu 20180525 #20:11:11Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: valid route: 163.253.44.0/24 descr: Internet2 TSG Denv origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20181205 #20:57:23Z last-modified: 2023-11-13T15:55:21Z rpki-ov-state: valid route: 198.71.47.0/24 descr: Internet2 origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20180103 #22:31:42Z last-modified: 2023-11-13T15:52:44Z rpki-ov-state: valid route6: 2001:468:2640::/48 descr: Internet2 TSG Denv origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20181008 #19:09:04Z last-modified: 2023-11-13T15:54:58Z rpki-ov-state: valid route6: 2001:468:f000::/48 descr: Internet2 TRCPS origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20181008 #19:09:04Z last-modified: 2023-11-13T15:54:58Z rpki-ov-state: valid route6: 2001:468:f0ff::/48 descr: Internet2 Trans origin: AS11164 mnt-by: MAINT-AS11537 source: RADB changed: jbartig [at] internet2.edu 20181008 #19:09:04Z last-modified: 2023-11-13T15:54:58Z rpki-ov-state: valid