These entries are queried from radb.net using whois, you can try my project getting these.
:AS137033 route: 103.149.72.0/23 origin: AS137033 descr: Md. Rabiul Awal Sonaimuri Road,Ramgonj,Lakshmipur mnt-by: MAINT-RSMNETWORK-BD last-modified: 2020-03-15T08:45:25Z source: APNIC rpki-ov-state: valid route: 103.149.72.0/24 descr: RSM NETWORK origin: AS137033 mnt-by: MAINT-RSMNETWORK-BD last-modified: 2020-03-15T08:48:00Z source: APNIC rpki-ov-state: valid route: 103.149.73.0/24 origin: AS137033 descr: Md. Rabiul Awal Sonaimuri Road,Ramgonj,Lakshmipur mnt-by: MAINT-RSMNETWORK-BD last-modified: 2021-01-11T12:45:11Z source: APNIC rpki-ov-state: valid route6: 2001:df5:c780::/48 origin: AS137033 descr: Md. Rabiul Awal Sonaimuri Road,Ramgonj,Lakshmipur mnt-by: MAINT-RSMNETWORK-BD last-modified: 2021-01-11T12:49:12Z source: APNIC rpki-ov-state: valid