These entries are queried from radb.net using whois, you can try my project getting these.
:AS-LINK11-WW as-set: AS-LINK11-WW descr: Customers outside RIPE area members: AS394923 members: AS53070 members: AS-DOSARREST members: AS-GREATFORTI members: AS-DHIRAAGU members: AS45839 admin-c: MAINT-LINK11-INT tech-c: MAINT-LINK11-INT notify: ops [at] link11.com mnt-by: MAINT-LINK11-INT changed: admin [at] link11.com 20231012 #13:14:07Z source: RADB last-modified: 2023-11-13T16:19:00Z