These entries are queried from radb.net using whois, you can try my project getting these.
:AS38483 route: 210.14.21.0/24 descr: RCGIT origin: AS38483 remarks: IP Transit Client notify: dns-igate [at] pldt.com.ph mnt-by: MAINT-PLDT changed: ssmiguel [at] pldt.com.ph 20070824 source: NTTCOM rpki-ov-state: valid