These entries are queried from radb.net using whois, you can try my project getting these.
:AS52407 route: 201.221.121.0/24 descr: TELMEX-CL-SSEE cliente GTD-INTERNET origin: AS52407 notify: rodrigo.valenzuela [at] clarochile.cl mnt-by: MAINT-AMCL-BB changed: rodrigo.valenzuela [at] clarochile.cl 20121008 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 201.221.121.0/24 descr: This route object is for IFX Networks customer route which is being exported under this origin AS 52407 origin: AS52407 mnt-by: MAINT-AS18747 changed: noc [at] ifxcorp.com 20180228 #16:11:10Z source: RADB last-modified: 2023-11-13T16:18:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source