These entries are queried from radb.net using whois, you can try my project getting these.
:AS394049 route: 97.64.88.0/23 descr: University of Wisconsin Hospital and Clinics descr: 600 Highland Avenue descr: Madison, WI 53792 descr: US origin: AS394049 mnt-by: MNT-UWHCA changed: network [at] uwhealth.org 20170816 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 97.64.88.0/24 descr: CHTR-UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY-Central origin: AS394049 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20210419 #15:31:54Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 97.64.89.0/24 descr: CHTR-UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY-Central origin: AS394049 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20210408 #03:20:09Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 97.64.90.0/23 descr: University of Wisconsin Hospital and Clinics descr: 600 Highland Avenue descr: Madison, WI 53792 descr: US origin: AS394049 mnt-by: MNT-UWHCA changed: network [at] uwhealth.org 20170816 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 97.64.90.0/24 descr: CHTR-UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY-Central origin: AS394049 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20210408 #03:20:09Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 97.64.91.0/24 descr: CHTR-UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY-Central origin: AS394049 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20210408 #03:20:09Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.250.20.0/24 descr: CHTR-UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY-Central origin: AS394049 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20210408 #03:20:09Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: valid route: 192.250.20.0/24 descr: University of Wisconsin Hospital and Clinics descr: 600 Highland Avenue descr: Madison, WI 53792 descr: US origin: AS394049 mnt-by: MNT-UWHCA changed: network [at] uwhealth.org 20160822 source: ARIN rpki-ov-state: valid route: 192.250.21.0/24 descr: University of Wisconsin Hospital and Clinics descr: 600 Highland Avenue descr: Madison, WI 53792 descr: US origin: AS394049 mnt-by: MNT-UWHCA changed: network [at] uwhealth.org 20160822 source: ARIN rpki-ov-state: valid route: 192.250.21.0/24 descr: CHTR-UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY-Central origin: AS394049 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20210419 #15:31:54Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: valid