These entries are queried from radb.net using whois, you can try my project getting these.
:AS140084 route: 103.148.74.0/23 origin: AS140084 descr: Md. Shahidul Islam 88, Zodiac Place, Ganakpara, Ghoramara, Boalia, Rajshahi descr: Sinthia Telecom mnt-by: MAINT-SINTHIA-BD last-modified: 2020-02-14T17:40:52Z source: APNIC rpki-ov-state: valid route: 103.148.74.0/24 origin: AS140084 descr: Md. Shahidul Islam 88, Zodiac Place, Ganakpara, Ghoramara, Boalia, Rajshahi descr: Sinthia Telecom mnt-by: MAINT-SINTHIA-BD last-modified: 2020-02-14T17:39:26Z source: APNIC rpki-ov-state: valid route: 103.148.75.0/24 origin: AS140084 descr: Md. Shahidul Islam 88, Zodiac Place, Ganakpara, Ghoramara, Boalia, Rajshahi descr: Sinthia Telecom mnt-by: MAINT-SINTHIA-BD last-modified: 2020-02-14T17:39:55Z source: APNIC rpki-ov-state: valid route6: 2001:df2:c180::/48 origin: AS140084 descr: Md. Shahidul Islam 88, Zodiac Place, Ganakpara, Ghoramara, Boalia, Rajshahi mnt-by: MAINT-SINTHIA-BD last-modified: 2021-06-08T04:15:56Z source: APNIC rpki-ov-state: valid