These entries are queried from radb.net using whois, you can try my project getting these.
:AS141460 route: 103.159.254.0/24 origin: AS141460 descr: Shahana Begum Kanchan Bazar Road, Kanchan, Rupganj, Narayanganj mnt-by: MAINT-SNSIT-BD last-modified: 2021-12-14T12:54:10Z source: APNIC rpki-ov-state: valid route: 103.159.255.0/24 origin: AS141460 descr: Shahana Begum Kanchan Bazar Road, Kanchan, Rupganj, Narayanganj mnt-by: MAINT-SNSIT-BD last-modified: 2022-01-27T17:32:57Z source: APNIC rpki-ov-state: valid route6: 2001:df5:8e80::/48 origin: AS141460 descr: Shahana Begum Kanchan Bazar Road, Kanchan, Rupganj, Narayanganj mnt-by: MAINT-SNSIT-BD last-modified: 2020-12-17T08:07:59Z source: APNIC rpki-ov-state: valid