These entries are queried from radb.net using whois, you can try my project getting these.
:AS151984 route: 103.252.120.0/23 origin: AS151984 descr: Nayem Mia Barotopa, Mawna, Sreepur. mnt-by: MAINT-NRLINK-BD last-modified: 2024-01-17T15:20:06Z source: APNIC rpki-ov-state: valid route: 103.252.120.0/24 origin: AS151984 descr: Nayem Mia Barotopa, Mawna, Sreepur. mnt-by: MAINT-NRLINK-BD last-modified: 2024-01-17T15:36:00Z source: APNIC rpki-ov-state: valid route: 103.252.121.0/24 origin: AS151984 descr: Nayem Mia Barotopa, Mawna, Sreepur. mnt-by: MAINT-NRLINK-BD last-modified: 2024-01-17T15:37:27Z source: APNIC rpki-ov-state: valid