These entries are queried from radb.net using whois, you can try my project getting these.
:AS147053 route: 103.173.172.0/23 origin: AS147053 descr: Md Rasel Miah Holding G/39, Shahid Nazmim uddin road mnt-by: MAINT-BHALUKA-BD last-modified: 2021-09-24T04:24:53Z source: APNIC rpki-ov-state: valid route: 103.173.172.0/24 origin: AS147053 descr: Md Rasel Miah Holding G/39, Shahid Nazmim uddin road mnt-by: MAINT-BHALUKA-BD last-modified: 2021-09-24T04:24:54Z source: APNIC rpki-ov-state: valid route: 103.173.173.0/24 origin: AS147053 descr: Md Rasel Miah Holding G/39, Shahid Nazmim uddin road mnt-by: MAINT-BHALUKA-BD last-modified: 2021-09-24T04:24:56Z source: APNIC rpki-ov-state: valid route6: 2001:df7:a180::/48 origin: AS147053 descr: Md Rasel Miah Holding G/39, Shahid Nazmim uddin road mnt-by: MAINT-BHALUKA-BD last-modified: 2021-09-24T04:27:01Z source: APNIC rpki-ov-state: valid