These entries are queried from radb.net using whois, you can try my project getting these.
:AS263543 route: 143.202.120.0/22 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 AS263543) 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: AS263543 notify: ip-bgp [at] oi.net.br mnt-by: MAINT-AS8167 changed: ip-bgp [at] oi.net.br 20190903 source: RADB last-modified: 2023-11-13T15:57:22Z rpki-ov-state: valid route: 143.202.120.0/22 descr: Butzen e Mentges Ltda origin: AS263543 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS263543 changed: db-admin [at] bgp.net.br 20190913 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: valid route: 191.5.236.0/22 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 AS263543) 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: AS263543 notify: ip-bgp [at] oi.net.br mnt-by: MAINT-AS8167 changed: ip-bgp [at] oi.net.br 20190903 source: RADB last-modified: 2023-11-13T15:57:22Z rpki-ov-state: valid route: 191.5.236.0/23 descr: CLARO S.A. Customer origin: AS263543 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20231019 source: RADB last-modified: 2023-11-13T16:19:05Z rpki-ov-state: valid route: 191.5.238.0/23 descr: CLARO S.A. Customer origin: AS263543 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20231019 source: RADB last-modified: 2023-11-13T16:19:05Z rpki-ov-state: valid route6: 2804:13a4::/32 descr: Solicitado por IPv6 Internet. Feb 23 2015 origin: AS263543 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20150223 #16:05:46Z source: RADB last-modified: 2023-11-13T15:47:19Z rpki-ov-state: valid