These entries are queried from radb.net using whois, you can try my project getting these.
:AS141033 route6: 2001:df4:ab80::/48 origin: AS141033 descr: Md Mahbubur Rahman Hazi Mansion, Burichang Bazar, Burichang mnt-by: MAINT-PRANTAENTERPRISE-BD last-modified: 2022-07-24T09:59:08Z source: APNIC rpki-ov-state: valid