These entries are queried from radb.net using whois, you can try my project getting these.
:AS141993 route: 103.164.52.0/23 origin: AS141993 descr: X LINK ASIA COOPERATION CO.,LTD. 25 Prey Prich Village mnt-by: MAINT-XLACC-KH last-modified: 2021-03-12T17:34:56Z source: APNIC rpki-ov-state: valid route6: 2001:df6:3e80::/48 origin: AS141993 descr: X LINK ASIA COOPERATION CO.,LTD. 25 Prey Prich Village mnt-by: MAINT-XLACC-KH last-modified: 2021-03-12T17:35:21Z source: APNIC rpki-ov-state: valid