These entries are queried from radb.net using whois, you can try my project getting these.
:AS52755 route: 177.38.168.0/21 descr: America Movil Brasil origin: AS52755 mnt-by: MAINT-AS28513 changed: noc [at] reduno.com.mx 20140103 source: RADB last-modified: 2023-11-13T15:45:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.38.168.0/22 descr: America Movil Brasil origin: AS52755 mnt-by: MAINT-AS28513 changed: noc [at] reduno.com.mx 20140103 source: RADB last-modified: 2023-11-13T15:45:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.38.172.0/22 descr: America Movil Brasil origin: AS52755 mnt-by: MAINT-AS28513 changed: noc [at] reduno.com.mx 20140103 source: RADB last-modified: 2023-11-13T15:45:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source