These entries are queried from radb.net using whois, you can try my project getting these.
:AS138659 route: 103.135.232.0/22 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-03-12T02:24:24Z source: APNIC rpki-ov-state: valid route: 103.135.232.0/23 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-03-12T02:24:25Z source: APNIC rpki-ov-state: valid route: 103.135.232.0/24 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-03-12T02:24:26Z source: APNIC rpki-ov-state: valid route: 103.135.233.0/24 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-03-12T02:24:26Z source: APNIC rpki-ov-state: valid route: 103.135.234.0/23 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-03-12T02:24:27Z source: APNIC rpki-ov-state: valid route: 103.135.234.0/24 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-03-12T02:24:27Z source: APNIC rpki-ov-state: valid route: 103.135.235.0/24 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-03-12T02:24:28Z source: APNIC rpki-ov-state: valid route6: 2404:86c0::/32 origin: AS138659 descr: Muhammad Nazmus Saadat Kha-146/4/A, Khilkhet Tanpara, Khilkhet mnt-by: MAINT-CYBERLINK1-BD last-modified: 2019-11-23T11:10:41Z source: APNIC rpki-ov-state: valid