These entries are queried from radb.net using whois, you can try my project getting these.
:AS138953 route: 103.137.160.0/23 origin: AS138953 descr: Md Rajib Holding No-1162, Hospital Raod, Maijdee,Sadar mnt-by: MAINT-TOPNETWORK-BD last-modified: 2019-04-18T16:58:16Z source: APNIC rpki-ov-state: valid route: 103.137.160.0/24 descr: Top Network origin: AS138953 mnt-by: MAINT-TOPNETWORK-BD last-modified: 2019-04-01T16:41:32Z source: APNIC rpki-ov-state: valid route6: 2001:df0:2480::/48 descr: Top Network origin: AS138953 mnt-by: MAINT-TOPNETWORK-BD last-modified: 2019-04-01T16:46:36Z source: APNIC rpki-ov-state: valid