These entries are queried from radb.net using whois, you can try my project getting these.
:AS52713 route: 177.73.252.0/24 descr: CLARO S.A. Customer origin: AS52713 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190730 source: RADB last-modified: 2023-11-13T15:56:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:540::/48 descr: Proxy-registered route object remarks: --------------------------------- remarks: For SECURITY issues, please send messages to remarks: origin AS administrator remarks: (e.g. whois -h whois.registro.br AS52713) remarks: --------------------------------- remarks: This route is from a Vtal customer which remarks: is being exported under origin AS below. remarks: It was created by us because no other remarks: route object with the same origin was found. remarks: --------------------------------- remarks: Please contact BGPVTAL-RADB if you have any remarks: questions regarding this object. remarks: --------------------------------- origin: AS52713 notify: LD-SN3BBIP [at] vtal.com mnt-by: MAINT-AS8167 changed: LD-SN3BBIP [at] vtal.com 20220331 source: RADB last-modified: 2023-11-13T16:10:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source