These entries are queried from radb.net using whois, you can try my project getting these.
:AS38588 route: 103.168.140.0/23 origin: AS38588 descr: Felicity IDC Limited House#8/B, Road#1, Gulshan-1 mnt-by: MAINT-FIL-BD last-modified: 2021-06-23T06:10:58Z source: APNIC rpki-ov-state: valid route: 103.168.140.0/24 origin: AS38588 descr: Felicity IDC Limited House#8/B, Road#1, Gulshan-1 mnt-by: MAINT-FIL-BD last-modified: 2021-06-23T06:11:00Z source: APNIC rpki-ov-state: valid route: 103.168.141.0/24 origin: AS38588 descr: Felicity IDC Limited House#8/B, Road#1, Gulshan-1 mnt-by: MAINT-FIL-BD last-modified: 2021-06-23T06:11:02Z source: APNIC rpki-ov-state: valid route6: 2407:9040::/32 origin: AS38588 descr: Felicity IDC Limited House#8/B, Road#1, Gulshan-1 mnt-by: MAINT-FIL-BD last-modified: 2021-06-23T06:10:57Z source: APNIC rpki-ov-state: valid