These entries are queried from radb.net using whois, you can try my project getting these.
:AS137868 route: 103.115.252.0/24 origin: AS137868 descr: Md. Murad Hossain Ripon Hazi mention,Rajfulbaria,Savar,Dhaka-1347 mnt-by: MAINT-SIS-BD last-modified: 2021-05-27T11:00:37Z source: APNIC rpki-ov-state: valid route: 103.115.253.0/24 origin: AS137868 descr: Md. Murad Hossain Ripon Hazi mention,Rajfulbaria,Savar,Dhaka-1347 mnt-by: MAINT-SIS-BD last-modified: 2019-11-01T12:55:01Z source: APNIC rpki-ov-state: valid route: 103.115.254.0/24 origin: AS137868 descr: Md. Murad Hossain Ripon Hazi mention,Rajfulbaria,Savar,Dhaka-1347 mnt-by: MAINT-SIS-BD last-modified: 2022-03-08T16:10:59Z source: APNIC rpki-ov-state: valid route: 103.115.255.0/24 origin: AS137868 descr: Md. Murad Hossain Ripon Hazi mention,Rajfulbaria,Savar,Dhaka-1347 mnt-by: MAINT-SIS-BD last-modified: 2021-04-28T23:24:21Z source: APNIC rpki-ov-state: valid