These entries are queried from radb.net using whois, you can try my project getting these.
:AS52838 route: 138.0.188.0/22 descr: WN TELECOM LTDA - ME origin: AS52838 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS52838 changed: db-admin [at] bgp.net.br 20201022 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.0.188.0/22 descr: G8 Networks origin: AS52838 mnt-by: MAINT-AS28329 changed: noc [at] g8.net.br 20150616 source: RADB last-modified: 2023-11-13T15:48:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.202.92.0/22 descr: WN TELECOM LTDA - ME origin: AS52838 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS52838 changed: db-admin [at] bgp.net.br 20201022 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.202.92.0/22 descr: G8 Networks origin: AS52838 mnt-by: MAINT-AS28329 changed: aldo.russo [at] g8.net.br 20151009 source: RADB last-modified: 2023-11-13T15:48:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.66.100.0/22 descr: G8 Networks origin: AS52838 mnt-by: MAINT-AS28329 changed: noc [at] g8.net.br 20150616 source: RADB last-modified: 2023-11-13T15:48:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:bd8::/32 descr: Cliente do Cliente WN TELECOM origin: AS52838 remarks: AS PATH 267613 52838 remarks: Processamento corretivo v2 notify: coreweb_tier2 [at] eletronet.com notify: filtrosbgpoperadoras [at] eletronet.com mnt-by: MAINT-AS267613 changed: guilherme.cecilio [at] eletronet.com 20190531 #21:09:09Z source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source