These entries are queried from radb.net using whois, you can try my project getting these.
:AS38648 route: 203.76.164.0/22 descr: F-REGI origin: AS38648 notify: tech [at] f-regi.com mnt-by: MAINT-AS38648 changed: tech [at] f-regi.com 20090108 source: NTTCom rpki-ov-state: valid route6: 2402:3b00::/32 descr: F-REGI origin: AS38648 notify: tech [at] f-regi.com mnt-by: MAINT-AS38648 changed: tech [at] f-regi.com 20170427 source: NTTCom rpki-ov-state: valid