These entries are queried from radb.net using whois, you can try my project getting these.
:AS36944 route: 196.32.208.0/21 descr: UbuntuNet route origin: AS36944 mnt-by: ubunt-mnt changed: *** [at] ubuntunet.net 20230117 source: AFRINIC rpki-ov-state: valid route: 196.32.208.0/21 descr: Ubuntunet Alliance Research and Education Network origin: AS36944 remarks: Registered for Announcement by AS36944 mnt-by: MAINT-AS36944 changed: jkimaili [at] ubuntunet.net 20230128 source: ALTDB rpki-ov-state: valid route6: 2001:43f8:20::/48 descr: UbuntuNet route6 origin: AS36944 mnt-by: ubunt-mnt changed: *** [at] ubuntunet.net 20230117 source: AFRINIC rpki-ov-state: valid route6: 2001:43f8:20::/48 descr: Ubuntunet Alliance Research and Education Network origin: AS36944 remarks: Registered for Announcement by AS36944 mnt-by: MAINT-AS36944 changed: jkimaili [at] ubuntunet.net 20230128 source: ALTDB rpki-ov-state: valid