These entries are queried from radb.net using whois, you can try my project getting these.
:AS271638 route: 200.16.92.0/24 descr: CLARO S.A. Customer origin: AS271638 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20231221 source: RADB last-modified: 2023-12-21T13:51:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.16.92.0/24 descr: CRONOS TELECOM origin: AS271638 member-of: AS271638:RS-ROUTES notify: solrac_vagner [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-RO geoidx: MACHADINHO D'OESTE mnt-by: MAINT-AS271638 changed: pedro.selig@gmail 20230909 source: TC last-modified: 2023-09-09T12:51:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7ea8::/32 descr: CLARO S.A. Customer origin: AS271638 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210331 source: RADB last-modified: 2023-11-13T16:05:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7ea8::/32 descr: CRONOS TELECOM origin: AS271638 member-of: AS271638:RS-ROUTES notify: solrac_vagner [at] hotmail.com geoidx: BR geoidx: BRA geoidx: 076 geoidx: BR-RO geoidx: MACHADINHO D'OESTE mnt-by: MAINT-AS271638 changed: pedro.selig@gmail 20230909 source: TC last-modified: 2023-09-09T12:59:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7ea8::/32 descr: PROXY FOR OUR CUSTOMER CONE origin: AS271638 mnt-by: MAINT-AS61884 changed: noc [at] ollatelecom.com.br 20211014 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source