These entries are queried from radb.net using whois, you can try my project getting these.
:AS394564 route: 66.112.192.0/24 origin: AS394564 descr: Chicago Subnet - Hold admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2022-02-19T22:41:29Z last-modified: 2022-08-28T16:52:32Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.192.0/24 origin: AS394564 descr: proxy route-object for Unitas customer Spectrotel admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20220219 #20:57:21Z source: RADB last-modified: 2023-11-13T16:09:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.193.0/24 origin: AS394564 descr: proxy route-object for Unitas customer Spectrotel admin-c: UNITAS-SOC tech-c: UNITAS-SOC mnt-by: MAINT-AS1828 changed: avi.nannival [at] unitasglobal.com 20220328 #16:51:17Z source: RADB last-modified: 2023-11-13T16:10:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.193.0/24 origin: AS394564 descr: PRI: Ashburn / SEC: Chicago 01 admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2022-03-27T17:50:31Z last-modified: 2022-08-28T17:29:58Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.194.0/24 origin: AS394564 descr: PRI: Ashburn / SEC: Chicago - 02 admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2022-08-28T17:29:42Z last-modified: 2022-08-28T17:29:42Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.195.0/24 origin: AS394564 descr: PRI: Ashburn / SEC: Chicago 03 admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2022-08-28T17:30:27Z last-modified: 2022-08-28T17:30:27Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.196.0/24 origin: AS394564 descr: Ashburn VA DC Shared Subnet admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2023-06-30T19:22:31Z last-modified: 2023-06-30T19:22:31Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.197.0/24 origin: AS394564 descr: Dallas Primary - San Jose Secondary admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2023-11-03T13:02:32Z last-modified: 2023-11-03T13:02:32Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.198.0/24 origin: AS394564 descr: PRI: Chicago / SEC: Ashburn 01 admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2022-08-28T17:30:54Z last-modified: 2022-08-28T17:30:54Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.199.0/24 origin: AS394564 descr: PRI: Chicago / SEC: Ashburn 02 admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2022-08-28T17:31:14Z last-modified: 2022-08-28T17:31:14Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.203.0/24 origin: AS394564 descr: PRI: Silicon Valley / SEC: Chicago 01 admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2022-08-28T17:31:35Z last-modified: 2022-08-28T17:31:35Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.206.0/24 origin: AS394564 descr: Dallas Primary - San Jose Secondary admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2023-11-03T14:05:11Z last-modified: 2023-11-03T14:05:11Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.112.207.0/24 origin: AS394564 descr: Dallas Primary- -San Jose Secondary admin-c: ENGIN252-ARIN tech-c: ENGIN252-ARIN mnt-by: MNT-MXLC created: 2023-11-03T14:07:34Z last-modified: 2023-11-03T14:07:34Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.66.4.0/24 origin: AS394564 descr: Customer Proxy Object admin-c: UNITAS-SOC tech-c: UNITAS-SOC mnt-by: MAINT-AS1828 changed: mike.simkins [at] unitasglobal.com 20220225 #12:09:04Z source: RADB last-modified: 2023-11-13T16:09:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.66.5.0/24 origin: AS394564 descr: proxy route for Unitas customer Spectrotel admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20211222 #16:06:49Z source: RADB last-modified: 2023-11-13T16:09:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.146.102.0/24 origin: AS394564 descr: proxy route object for Unitas Global customer Spectrotel admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20210512 #14:14:10Z source: RADB last-modified: 2023-11-13T16:05:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source