These entries are queried from radb.net using whois, you can try my project getting these.
:AS38539 route: 121.127.20.0/24 origin: AS38539 descr: IPVG 34th T2 Floor RCBC Plaza Ayala Ave. corner Buendia 6819 Ayala Avenue mnt-by: MAINT-PH-IPVG last-modified: 2021-01-25T13:28:51Z source: APNIC rpki-ov-state: valid