These entries are queried from radb.net using whois, you can try my project getting these.
:AS147298 route: 103.174.138.0/23 origin: AS147298 descr: shibpur Technology Care mnt-by: MAINT-STC-BD last-modified: 2021-10-19T08:41:17Z source: APNIC rpki-ov-state: valid route: 103.174.138.0/24 origin: AS147298 descr: MD BILLAL BHUYAN Near Shippur Model Thana, Shibpur, Narsingdi mnt-by: MAINT-STC-BD last-modified: 2021-10-19T08:35:55Z source: APNIC rpki-ov-state: valid route: 103.174.139.0/24 origin: AS147298 descr: MD BILLAL BHUYAN Near Shippur Model Thana, Shibpur, Narsingdi mnt-by: MAINT-STC-BD last-modified: 2021-10-19T08:35:55Z source: APNIC rpki-ov-state: valid route6: 2400:12a0::/32 origin: AS147298 descr: MD BILLAL BHUYAN Near Shippur Model Thana, Shibpur, Narsingdi mnt-by: MAINT-STC-BD last-modified: 2021-10-25T14:33:43Z source: APNIC rpki-ov-state: valid