These entries are queried from radb.net using whois, you can try my project getting these.
:AS52973 route: 186.216.192.0/20 descr: YIP origin: AS52973 mnt-by: MAINT-AS263047 changed: eng [at] linkfull.com.br 20151126 #15:56:37Z source: RADB last-modified: 2023-11-13T15:58:51Z rpki-ov-state: valid route: 186.216.192.0/20 descr: PROXY FOR OUR COSTUMER CONE origin: AS52973 mnt-by: MAINT-AS263558 changed: jetelecom [at] jetelecom.com.br 20210118 source: ALTDB rpki-ov-state: valid route: 186.216.192.0/21 descr: CLARO S.A. Customer origin: AS52973 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20211116 source: RADB last-modified: 2023-11-13T16:08:40Z rpki-ov-state: valid route: 186.216.200.0/21 descr: CLARO S.A. Customer origin: AS52973 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20211116 source: RADB last-modified: 2023-11-13T16:08:40Z rpki-ov-state: valid route6: 2804:3b00::/32 descr: AS-RDT-CUSTOMER-52973 origin: AS52973 remarks: Cliente do Cliente RD Telecom (Jet internet) remarks: AS PATH 267613 263558 52973 remarks: Usuario XConn ulisses.almeida remarks: ************************************************************ remarks: This is a Eletronet customer proxy route object that was cre remarks: ated because no existing route object with the same origin w remarks: as found. Please contact noc [at] eletronet.net.br if you have an remarks: y questions regarding this object. remarks: ************************************************************ notify: coreweb_tier2 [at] eletronet.com notify: filtrosbgpoperadoras [at] eletronet.com mnt-by: MAINT-AS267613 changed: ulisses.almeida [at] eletronet.com 20200403 #18:39:27Z source: RADB last-modified: 2023-11-13T16:00:18Z rpki-ov-state: valid route6: 2804:3b00::/32 descr: PROXY FOR OUR COSTUMER CONE origin: AS52973 mnt-by: MAINT-AS263558 changed: jetelecom [at] jetelecom.com.br 20210118 source: ALTDB rpki-ov-state: valid route6: 2804:3b00::/32 descr: YIPI Telecom LTDA. origin: AS52973 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS52973 changed: db-admin [at] bgp.net.br 20200426 source: TC rpki-ov-state: valid