These entries are queried from radb.net using whois, you can try my project getting these.
:AS140073 route: 103.147.168.0/24 origin: AS140073 descr: Nur Faysal Mahmud 136, 137 Gawsul Azom Super Market, 1st Floor Nilkhet mnt-by: MAINT-DIGITALSYNAPSE-BD last-modified: 2020-03-29T07:15:01Z source: APNIC rpki-ov-state: valid route: 103.147.169.0/24 origin: AS140073 descr: Nur Faysal Mahmud 136, 137 Gawsul Azom Super Market, 1st Floor Nilkhet mnt-by: MAINT-DIGITALSYNAPSE-BD last-modified: 2020-03-29T07:16:17Z source: APNIC rpki-ov-state: valid