These entries are queried from radb.net using whois, you can try my project getting these.
:AS139668 route: 103.143.91.0/24 origin: AS139668 descr: Cefalo Bangladesh Ltd House#12; Road#12; Dhanmondi. mnt-by: MAINT-CEFALO-BD last-modified: 2019-09-25T09:58:16Z source: APNIC rpki-ov-state: valid route: 103.177.19.0/24 origin: AS139668 descr: Cefalo Bangladesh Ltd House#12; Road#12; Dhanmondi. mnt-by: MAINT-CEFALO-BD last-modified: 2021-11-30T09:24:07Z source: APNIC rpki-ov-state: valid