These entries are queried from radb.net using whois, you can try my project getting these.
:AS18426 route: 203.145.192.0/21 descr: STPI (proxy-registered route object) origin: AS18426 remarks: ------------------------------------------------ remarks: This route object was created because some peers remarks: filter based on these objects and this route may remarks: be rejected if this object is not created. remarks: ------------------------------------------------ notify: ylchang [at] gate.sinica.edu.tw mnt-by: MAINT-ASNET changed: ylchang [at] gate.sinica.edu.tw 20060811 source: NTTCOM rpki-ov-state: valid