These entries are queried from radb.net using whois, you can try my project getting these.
:AS134585 route6: 2403:5bc0::/32 origin: AS134585 descr: REZA MD SAMSUZZOHA Sheetal villa, Kalibari, Thakurgaon, Bangladesh. mnt-by: MAINT-SHEETALBROADBAND-BD last-modified: 2020-03-03T11:47:54Z source: APNIC rpki-ov-state: valid