These entries are queried from radb.net using whois, you can try my project getting these.
:AS137953 route: 103.243.244.0/23 origin: AS137953 descr: Bismillah IT Solution House - 214/1, 2nd Kandirpar Kotawali Model mnt-by: MAINT-BIS-BD last-modified: 2022-09-12T05:16:43Z country: BD source: APNIC rpki-ov-state: valid route: 103.243.244.0/24 origin: AS137953 descr: Bismillah IT Solution House - 214/1, 2nd Kandirpar Kotawali Model mnt-by: MAINT-BIS-BD last-modified: 2022-09-12T05:19:46Z country: BD source: APNIC rpki-ov-state: valid route: 103.243.245.0/24 origin: AS137953 descr: Bismillah IT Solution House - 214/1, 2nd Kandirpar Kotawali Model mnt-by: MAINT-BIS-BD last-modified: 2022-09-12T05:20:23Z country: BD source: APNIC rpki-ov-state: valid