These entries are queried from radb.net using whois, you can try my project getting these.
:AS139604 route: 103.142.80.0/23 origin: AS139604 descr: MD Bahar Hossain 2/16, Al-Khaja Market, Kastoghor Road, Sylhet mnt-by: MAINT-ARROWNET-BD last-modified: 2019-08-21T18:38:41Z source: APNIC rpki-ov-state: valid route: 103.142.80.0/24 origin: AS139604 descr: MD Bahar Hossain 2/16, Al-Khaja Market, Kastoghor Road, Sylhet mnt-by: MAINT-ARROWNET-BD last-modified: 2019-08-22T08:13:24Z source: APNIC rpki-ov-state: valid route: 103.142.81.0/24 origin: AS139604 descr: MD Bahar Hossain 2/16, Al-Khaja Market, Kastoghor Road, Sylhet mnt-by: MAINT-ARROWNET-BD last-modified: 2019-08-22T08:13:24Z source: APNIC rpki-ov-state: valid route: 103.176.2.0/24 origin: AS139604 descr: Arrow Net mnt-by: MAINT-ANWARENTERPRISE-BD last-modified: 2023-12-11T16:12:12Z source: APNIC rpki-ov-state: valid route6: 2001:df1:3680::/48 origin: AS139604 descr: MD Bahar Hossain 2/16, Al-Khaja Market, Kastoghor Road, Sylhet mnt-by: MAINT-ARROWNET-BD last-modified: 2019-11-22T16:29:30Z source: APNIC rpki-ov-state: valid