These entries are queried from radb.net using whois, you can try my project getting these.
:AS149644 route: 103.183.116.0/24 origin: AS149644 descr: ZSNET-BD mnt-by: MAINT-ZSNET-BD last-modified: 2022-03-24T12:17:17Z source: APNIC rpki-ov-state: valid route6: 2400:62a0::/32 origin: AS149644 descr: Mohammad saiful malek 60/2 Purana paltan, dhaka -1000. mnt-by: MAINT-ZSNET-BD last-modified: 2022-03-23T11:51:21Z source: APNIC rpki-ov-state: valid