These entries are queried from radb.net using whois, you can try my project getting these.
:AS61636 route: 131.100.120.0/22 descr: Solicitado por open X para Wilkens. Sep 01 2014 origin: AS61636 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20140901 #21:40:49Z source: RADB last-modified: 2023-11-13T15:46:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 131.100.121.0/24 descr: CLARO S.A. Customer origin: AS61636 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210513 source: RADB last-modified: 2023-11-13T16:05:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.4.0/22 descr: PROXY FOR OPENX CUSTOMER origin: AS61636 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20190529 remarks: Wed May 29 17:38:46 2019 source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.4.0/24 descr: CLARO S.A. Customer origin: AS61636 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210513 source: RADB last-modified: 2023-11-13T16:05:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.5.0/24 descr: CLARO S.A. Customer origin: AS61636 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210513 source: RADB last-modified: 2023-11-13T16:05:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.6.0/23 descr: CLARO S.A. Customer origin: AS61636 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210713 source: RADB last-modified: 2023-11-13T16:07:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1c14::/32 descr: PROXY FOR OPENX CUSTOMER origin: AS61636 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20190529 remarks: Wed May 29 17:41:27 2019 source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source