These entries are queried from radb.net using whois, you can try my project getting these.
:AS132123 route: 103.70.228.0/22 origin: AS132123 descr: Portonics Limited House 18, Road 6, 2nd floor Gulshan 1 mnt-by: MAINT-PORTONICSLIMITED-BD last-modified: 2016-08-08T10:58:36Z source: APNIC rpki-ov-state: valid route: 103.70.228.0/24 origin: AS132123 descr: Portonics Limited House 18, Road 6, 2nd floor Gulshan 1 mnt-by: MAINT-PORTONICSLIMITED-BD last-modified: 2016-08-09T04:09:22Z source: APNIC rpki-ov-state: valid route: 103.70.229.0/24 origin: AS132123 descr: Portonics Limited House 18, Road 6, 2nd floor Gulshan 1 mnt-by: MAINT-PORTONICSLIMITED-BD last-modified: 2016-08-09T04:10:01Z source: APNIC rpki-ov-state: valid route: 103.70.230.0/24 origin: AS132123 descr: Portonics Limited House 18, Road 6, 2nd floor Gulshan 1 mnt-by: MAINT-PORTONICSLIMITED-BD last-modified: 2016-08-09T04:17:07Z source: APNIC rpki-ov-state: valid route: 103.70.231.0/24 origin: AS132123 descr: Portonics Limited House 18, Road 6, 2nd floor Gulshan 1 mnt-by: MAINT-PORTONICSLIMITED-BD last-modified: 2016-08-09T04:17:36Z source: APNIC rpki-ov-state: valid route6: 2001:df3:be00::/48 origin: AS132123 descr: Portonics Limited House 18, Road 6, 2nd floor Gulshan 1 mnt-by: MAINT-PORTONICSLIMITED-BD last-modified: 2016-08-08T10:55:01Z source: APNIC rpki-ov-state: valid