These entries are queried from radb.net using whois, you can try my project getting these.
:AS141439 route6: 2001:df5:7f80::/48 descr: SF-BD-Online origin: AS141439 mnt-by: MAINT-SFBDONLINE-BD last-modified: 2020-12-01T05:31:12Z source: APNIC rpki-ov-state: valid