These entries are queried from radb.net using whois, you can try my project getting these.
:AS137020 route: 103.126.60.0/23 descr: origin: AS137020 mnt-by: MAINT-FCN-BD last-modified: 2018-12-06T10:19:31Z source: APNIC rpki-ov-state: valid route: 103.126.60.0/24 origin: AS137020 descr: Fast Cyber Network mnt-by: MAINT-FCN-BD last-modified: 2023-05-19T17:15:54Z country: BD source: APNIC rpki-ov-state: valid route: 103.126.61.0/24 descr: Fast Cyber Network origin: AS137020 mnt-by: MAINT-FCN-BD last-modified: 2023-05-19T17:20:02Z country: BD source: APNIC rpki-ov-state: valid route: 103.137.162.0/23 origin: AS137020 descr: Fast Cyber Network mnt-by: MAINT-DELSTAR-NETWORK-BD last-modified: 2022-03-20T05:54:52Z source: APNIC rpki-ov-state: valid route6: 2404:af40::/32 origin: AS137020 descr: MD MAHBUBUL ISLAM TANVIR 18/8, Zam Zam Complex, Baigertek,Dhaka Cantonment, mnt-by: MAINT-FCN-BD last-modified: 2019-06-19T05:18:04Z source: APNIC rpki-ov-state: valid route6: 2404:af40::/48 origin: AS137020 descr: MD MAHBUBUL ISLAM TANVIR 18/8, Zam Zam Complex, Baigertek,Dhaka Cantonment, mnt-by: MAINT-FCN-BD last-modified: 2019-06-19T05:30:06Z source: APNIC rpki-ov-state: valid route6: 2404:af40:1::/48 origin: AS137020 descr: MD MAHBUBUL ISLAM TANVIR 18/8, Zam Zam Complex, Baigertek,Dhaka Cantonment, mnt-by: MAINT-FCN-BD last-modified: 2019-06-19T05:29:27Z source: APNIC rpki-ov-state: valid