These entries are queried from radb.net using whois, you can try my project getting these.
:AS63957 route: 103.52.140.0/22 origin: AS63957 descr: Maruf Al Moin Uddin t/a 13 Online Cha-119, North Badda, Badda mnt-by: MAINT-M13ONLINEBD-BD last-modified: 2017-03-15T14:13:12Z source: APNIC rpki-ov-state: valid route: 103.52.140.0/23 origin: AS63957 descr: Maruf Al Moin Uddin t/a 13 Online Cha-119, North Badda, Badda mnt-by: MAINT-M13ONLINEBD-BD last-modified: 2017-03-15T14:14:59Z source: APNIC rpki-ov-state: valid route: 103.52.140.0/24 descr: 13 online origin: AS63957 mnt-by: MAINT-M13ONLINEBD-BD country: BD last-modified: 2017-02-13T14:23:02Z source: APNIC rpki-ov-state: valid route: 103.52.141.0/24 descr: 13 Online origin: AS63957 mnt-by: MAINT-M13ONLINEBD-BD country: BD last-modified: 2017-02-13T14:24:04Z source: APNIC rpki-ov-state: valid route: 103.52.142.0/23 origin: AS63957 descr: Maruf Al Moin Uddin t/a 13 Online Cha-119, North Badda, Badda mnt-by: MAINT-M13ONLINEBD-BD last-modified: 2017-03-15T14:15:46Z source: APNIC rpki-ov-state: valid route: 103.52.142.0/24 descr: 13 Online origin: AS63957 mnt-by: MAINT-M13ONLINEBD-BD country: BD last-modified: 2017-02-13T14:25:07Z source: APNIC rpki-ov-state: valid route: 103.52.143.0/24 descr: 13 Online origin: AS63957 mnt-by: MAINT-M13ONLINEBD-BD country: BD last-modified: 2017-02-13T14:25:57Z source: APNIC rpki-ov-state: valid