These entries are queried from radb.net using whois, you can try my project getting these.
:AS150164 route: 103.142.0.0/23 origin: AS150164 descr: M AMIN NETWORK/ISP mnt-by: MAINT-MAMINNETWORK-BD last-modified: 2022-08-17T05:38:22Z country: BD source: APNIC rpki-ov-state: valid route: 103.142.0.0/24 origin: AS150164 descr: M AMIN NETWORK mnt-by: MAINT-MAMINNETWORK-BD last-modified: 2022-08-17T05:39:03Z country: BD source: APNIC rpki-ov-state: valid route: 103.142.1.0/24 origin: AS150164 descr: M AMIN NETWORK mnt-by: MAINT-MAMINNETWORK-BD last-modified: 2022-08-17T05:39:49Z country: BD source: APNIC rpki-ov-state: valid route6: 2001:df1:2440::/48 origin: AS150164 descr: M AMIN NETWORK mnt-by: MAINT-MAMINNETWORK-BD last-modified: 2022-08-17T05:40:21Z country: BD source: APNIC rpki-ov-state: valid