These entries are queried from radb.net using whois, you can try my project getting these.
:AS27500 route: 199.91.192.0/21 descr: ICANN Meetings Network origin: AS27500 mnt-by: MAINT-AS26711 changed: ops [at] icann.org 20141119 #15:29:57Z source: RADB last-modified: 2023-11-13T15:47:00Z rpki-ov-state: valid route: 199.91.192.0/21 origin: AS27500 mnt-by: ICANN-MEETINGS created: 2016-05-09T19:01:12Z last-modified: 2019-07-25T19:26:35Z source: RIPE-NONAUTH remarks: To be used in Montreal, Canada from 1-Oct-2019 through 8-Nov-2019 remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid route: 199.91.192.0/22 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.192.0/23 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.192.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.193.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.194.0/23 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.194.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.195.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.196.0/23 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.196.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.197.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.198.0/23 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.198.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 199.91.199.0/24 descr: Proxy-registered route object origin: AS27500 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170529 #10:48:33Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route6: 2620:f:8000::/48 descr: ICANN Meetings Network origin: AS27500 mnt-by: MAINT-AS26711 changed: ops [at] icann.org 20141119 #15:21:11Z source: RADB last-modified: 2023-11-13T15:47:00Z rpki-ov-state: valid route6: 2620:f:8000::/48 origin: AS27500 mnt-by: ICANN-MEETINGS created: 2016-05-09T19:01:51Z last-modified: 2018-09-04T19:44:56Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid