These entries are queried from radb.net using whois, you can try my project getting these.
:AS45532 route: 103.142.142.0/23 origin: AS45532 descr: Bangladesh Bank Bangladesh Bank, Head office, Motijheel, Dhaka-1000, Bangladesh. mnt-by: MAINT-BBICTIMMD-BD last-modified: 2021-12-22T06:49:34Z source: APNIC rpki-ov-state: valid route: 103.142.142.0/24 origin: AS45532 descr: Bangladesh Bank Bangladesh Bank, Head office, Motijheel, Dhaka-1000, Bangladesh. mnt-by: MAINT-BBICTIMMD-BD last-modified: 2021-12-22T06:49:41Z source: APNIC rpki-ov-state: valid route: 103.142.143.0/24 origin: AS45532 descr: Bangladesh Bank Bangladesh Bank, Head office, Motijheel, Dhaka-1000, Bangladesh. mnt-by: MAINT-BBICTIMMD-BD last-modified: 2021-12-22T06:49:49Z source: APNIC rpki-ov-state: valid route: 114.130.42.0/23 origin: AS45532 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2019-10-23T09:04:32Z source: APNIC rpki-ov-state: valid route: 114.130.42.0/24 origin: AS45532 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2019-10-23T09:04:32Z source: APNIC rpki-ov-state: valid route: 114.130.43.0/24 origin: AS45532 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2019-10-23T09:04:33Z source: APNIC rpki-ov-state: valid route: 180.211.208.0/24 origin: AS45532 descr: Bangladesh Telegraph & Telephone Board Telejogajog Bhaban 37/E, Eskaton Garden mnt-by: MAINT-BD-BTTB last-modified: 2021-12-27T12:06:09Z source: APNIC rpki-ov-state: valid route6: 2001:df1:4680::/48 origin: AS45532 descr: Bangladesh Bank Bangladesh Bank, Head office, Motijheel, Dhaka-1000, Bangladesh. mnt-by: MAINT-BBICTIMMD-BD last-modified: 2021-12-22T06:54:34Z source: APNIC rpki-ov-state: valid