These entries are queried from radb.net using whois, you can try my project getting these.
:AS135038 route: 103.92.84.0/23 origin: AS135038 descr: Synesis IT Limited BDBL Bhaban (Level-3) 12 Kawran Bazar, Dhaka-1215 mnt-by: MAINT-SYNESISITLIMITED-BD last-modified: 2020-01-23T06:04:56Z source: APNIC rpki-ov-state: valid route: 103.92.84.0/24 origin: AS135038 descr: Synesis IT Limited BDBL Bhaban (Level-3) 12 Kawran Bazar, Dhaka-1215 mnt-by: MAINT-SYNESISITLIMITED-BD last-modified: 2020-01-23T06:02:42Z source: APNIC rpki-ov-state: valid route: 103.92.85.0/24 origin: AS135038 descr: Synesis IT Limited BDBL Bhaban (Level-3) 12 Kawran Bazar, Dhaka-1215 mnt-by: MAINT-SYNESISITLIMITED-BD last-modified: 2020-01-23T06:04:06Z source: APNIC rpki-ov-state: valid