These entries are queried from radb.net using whois, you can try my project getting these.
:AS2721 route: 192.188.108.0/24 origin: AS2721 descr: Proxy-registered route object for Presbyterian College mnt-by: MAINT-AS2711 changed: chris.hansford [at] segra.com 20190712 #15:14:51Z source: RADB last-modified: 2023-11-13T15:56:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.186.224.0/19 origin: AS2721 descr: C-Light Network, Legacy SCLR ranges admin-c: MILLE3158-ARIN tech-c: MILLE3158-ARIN mnt-by: MAINT-AS2722 changed: bkmille [at] clemson.edu 20200601 #04:42:39Z source: RADB last-modified: 2023-11-13T16:00:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.186.226.0/24 origin: AS2721 descr: Wind Turbine Guest Network in CHS at the CU remote campus admin-c: MILLE3158-ARIN tech-c: MILLE3158-ARIN mnt-by: MAINT-AS2722 changed: bkmille [at] clemson.edu 20200601 #05:59:46Z source: RADB last-modified: 2023-11-13T16:00:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:c000::/32 descr: SCLR origin: AS2721 mnt-by: MAINT-AS2637 changed: scott.friedrich [at] oit.gatech.edu 20180118 #17:39:57Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source