These entries are queried from radb.net using whois, you can try my project getting these.
:AS137274 route: 103.106.164.0/23 origin: AS137274 descr: UB Online mnt-by: MAINT-UBONLINE-BD last-modified: 2021-10-25T06:23:02Z source: APNIC rpki-ov-state: valid route: 103.106.164.0/24 origin: AS137274 descr: UB Online mnt-by: MAINT-UBONLINE-BD last-modified: 2021-10-25T06:22:38Z country: BD source: APNIC rpki-ov-state: valid route: 103.106.165.0/24 origin: AS137274 descr: UB Online mnt-by: MAINT-UBONLINE-BD last-modified: 2021-10-25T06:23:31Z country: BD source: APNIC rpki-ov-state: valid route6: 2406:e340::/32 origin: AS137274 descr: UB-Online mnt-by: MAINT-UBONLINE-BD last-modified: 2022-03-27T08:34:04Z source: APNIC rpki-ov-state: valid