These entries are queried from radb.net using whois, you can try my project getting these.
:AS263508 route: 191.243.160.0/20 origin: AS263508 descr: Seaborn Proxy for Customer AS52840 (Origin AS263508) admin-c: IP Network Operations tech-c: IP Network Operations remarks: **************************** remarks: * THIS OBJECT IS FOR SEABORN INTERNAL USE remarks: * Can be removed at any time remarks: **************************** mnt-by: MAINT-AS13786 changed: netops [at] edgeuno.com 20201013 #22:08:02Z source: RADB last-modified: 2023-11-13T16:02:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.160.0/21 descr: CLARO S.A. Customer origin: AS263508 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201016 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.160.0/22 descr: CLARO S.A. Customer origin: AS263508 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201016 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.164.0/22 descr: CLARO S.A. Customer origin: AS263508 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201016 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.168.0/21 descr: CLARO S.A. Customer origin: AS263508 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201016 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.168.0/22 descr: CLARO S.A. Customer origin: AS263508 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201016 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.172.0/22 descr: CLARO S.A. Customer origin: AS263508 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201016 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:12fc::/32 origin: AS263508 descr: Seaborn Proxy for Customer AS52840 (Origin AS263508) admin-c: IP Network Operations tech-c: IP Network Operations remarks: **************************** remarks: * THIS OBJECT IS FOR SEABORN INTERNAL USE remarks: * Can be removed at any time remarks: **************************** mnt-by: MAINT-AS13786 changed: netops [at] edgeuno.com 20201013 #22:23:10Z source: RADB last-modified: 2023-11-13T16:02:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source