These entries are queried from radb.net using whois, you can try my project getting these.
:AS142119 route: 103.166.144.0/24 origin: AS142119 descr: Proxy registered route object. NEX CORPORATEIT PTE LTD ONE PEMIMPIN, 1 PEMIMPIN DRIVE, Singapore 576151 Tyler.kor [at] nexcorporateit.com mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20210527 #07:59:04Z source: RADB last-modified: 2023-11-13T16:05:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source