These entries are queried from radb.net using whois, you can try my project getting these.
:AS136556 route: 103.92.160.0/24 origin: AS136556 descr: Mohammad Masum Ahmed 51/51 A (Ground Floor) Purana Pultan mnt-by: MAINT-MBOS-BD last-modified: 2019-07-08T05:47:47Z source: APNIC rpki-ov-state: valid route: 103.92.161.0/24 origin: AS136556 descr: Mohammad Masum Ahmed 51/51 A (Ground Floor) Purana Pultan mnt-by: MAINT-MBOS-BD last-modified: 2019-09-11T09:38:03Z source: APNIC rpki-ov-state: valid