These entries are queried from radb.net using whois, you can try my project getting these.
:AS139865 route: 103.146.94.0/23 origin: AS139865 descr: Bitroot Systems Limited Room No: 902(8th Floor), 309 Sheikh Mujib Road, Dewanhat mnt-by: MAINT-BSL-BD last-modified: 2019-12-10T14:23:00Z source: APNIC rpki-ov-state: valid route: 103.146.94.0/24 origin: AS139865 descr: Bitroot Systems Limited Room No: 902(8th Floor), 309 Sheikh Mujib Road, Dewanhat mnt-by: MAINT-BSL-BD last-modified: 2019-12-18T10:47:04Z source: APNIC rpki-ov-state: valid route: 103.146.95.0/24 origin: AS139865 descr: Bitroot Systems Limited Room No: 902(8th Floor), 309 Sheikh Mujib Road, Dewanhat mnt-by: MAINT-BSL-BD last-modified: 2019-12-18T10:47:05Z source: APNIC rpki-ov-state: valid