These entries are queried from radb.net using whois, you can try my project getting these.
:AS263600 route: 177.136.64.0/21 descr: PROXY FOR OPENX CUSTOMER origin: AS263600 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20200515 remarks: Fri May 15 14:35:48 2020 source: RADB last-modified: 2023-11-13T16:00:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.136.64.0/22 descr: Radio Link Telecom origin: AS263600 mnt-by: MAINT-AS263600 changed: junior [at] routerx.net.br 20200317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.136.64.0/23 descr: Radio Link Telecom origin: AS263600 mnt-by: MAINT-AS263600 changed: junior [at] routerx.net.br 20200317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.136.64.0/24 descr: Radio Link Telecom origin: AS263600 mnt-by: MAINT-AS263600 changed: junior [at] routerx.net.br 20200317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.136.65.0/24 descr: Radio Link Telecom origin: AS263600 mnt-by: MAINT-AS263600 changed: junior [at] routerx.net.br 20200317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.136.66.0/23 descr: Radio Link Telecom origin: AS263600 mnt-by: MAINT-AS263600 changed: junior [at] routerx.net.br 20200317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.136.66.0/24 descr: Radio Link Telecom origin: AS263600 mnt-by: MAINT-AS263600 changed: junior [at] routerx.net.br 20200317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.136.67.0/24 descr: Radio Link Telecom origin: AS263600 mnt-by: MAINT-AS263600 changed: junior [at] routerx.net.br 20200317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:fb8::/32 descr: PROXY FOR OPENX CUSTOMER origin: AS263600 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