These entries are queried from radb.net using whois, you can try my project getting these.
:AS134383 route: 103.121.140.0/22 origin: AS134383 descr: Pabna University of Science and Technology Pabna University of Science and Technology, Rajapur mnt-by: MAINT-PUST-BD last-modified: 2019-01-21T11:50:50Z source: APNIC rpki-ov-state: valid route6: 2001:df6:4300::/48 origin: AS134383 descr: Pabna University of Science and Technology Pabna University of Science and Technology Rajapur, Pabna Sadar, Pabna-6600 mnt-by: MAINT-PUST-BD last-modified: 2019-11-25T10:16:33Z source: APNIC rpki-ov-state: valid