These entries are queried from radb.net using whois, you can try my project getting these.
:AS133770 route: 103.156.238.0/23 origin: AS133770 descr: Md. Jahangir Alam 2ND FLOOR. POLASHPOLE. SATKHIRA mnt-by: MAINT-HMCOMMUNICATION-BD last-modified: 2020-10-06T06:26:46Z source: APNIC rpki-ov-state: valid route: 103.156.238.0/24 origin: AS133770 descr: HM Communication 2ND FLOOR. POLASHPOLE. SATKHIRA mnt-by: MAINT-HMCOMMUNICATION-BD last-modified: 2021-12-12T04:03:45Z source: APNIC rpki-ov-state: valid route: 103.156.239.0/24 origin: AS133770 descr: HM Communication 2ND FLOOR. POLASHPOLE. SATKHIRA mnt-by: MAINT-HMCOMMUNICATION-BD last-modified: 2021-12-12T04:02:57Z source: APNIC rpki-ov-state: valid route6: 2001:df5:180::/48 origin: AS133770 descr: Md. Jahangir Alam 2ND FLOOR. POLASHPOLE. SATKHIRA mnt-by: MAINT-HMCOMMUNICATION-BD last-modified: 2021-04-27T04:11:57Z source: APNIC rpki-ov-state: valid