These entries are queried from radb.net using whois, you can try my project getting these.
:AS61879 route: 131.0.152.0/22 origin: AS61879 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: si [at] aleducacional.com.br mnt-by: MAINT-AS61879 source: TC last-modified: 2021-09-29T17:24:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.0.152.0/22 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 AS61879) remarks: --------------------------------- remarks: This route is from a Oi 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 BGPOI-RADB if you have any remarks: questions regarding this object. remarks: --------------------------------- origin: AS61879 notify: ip-bgp [at] oi.net.br mnt-by: MAINT-AS8167 changed: ip-bgp [at] oi.net.br 20171114 source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.0.152.0/24 descr: CLARO S.A. Customer origin: AS61879 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200131 source: RADB last-modified: 2023-11-13T15:59:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.0.154.0/24 descr: CLARO S.A. Customer origin: AS61879 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200131 source: RADB last-modified: 2023-11-13T15:59:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:c00::/48 origin: AS61879 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: si [at] aleducacional.com.br mnt-by: MAINT-AS61879 source: TC last-modified: 2021-09-29T17:24:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2801:80:c00::/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 AS61879) remarks: --------------------------------- remarks: This route is from a Oi 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 BGPOI-RADB if you have any remarks: questions regarding this object. remarks: --------------------------------- origin: AS61879 notify: ip-bgp [at] oi.net.br mnt-by: MAINT-AS8167 changed: ip-bgp [at] oi.net.br 20171114 source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source