These entries are queried from radb.net using whois, you can try my project getting these.
:AS263517 route: 191.243.224.0/20 descr: ITX-SMART origin: AS263517 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20170918 #13:10:32Z source: RADB last-modified: 2023-11-13T15:51:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.224.0/22 descr: ITX-SMART origin: AS263517 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20170922 #14:02:04Z source: RADB last-modified: 2023-11-13T15:51:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.228.0/22 descr: Angola Cables proxy-registered route object for customer AS263517 origin: AS263517 remarks: *********************************************** remarks: This object is for *AS263517* customer routes remarks: which is being exported from this source AS. remarks: remarks: This route object was create because no existing remarks: route object with the same sources was found, and remarks: since some Angola Cables peers filter based on remarks: these objects these routes may be rejected if remarks: this object is not created. remarks: remarks: Please contact peering [at] angolacables.co.ao if you remarks: have any questions regarding this object. remarks: *********************************************** mnt-by: MAINT-AS37468 changed: humberto.galiza [at] angolacables.co.ao 20180928 #23:38:34Z source: RADB last-modified: 2023-11-13T15:54:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.232.0/22 descr: Angola Cables proxy-registered route object for customer AS263517 origin: AS263517 remarks: *********************************************** remarks: This object is for *AS263517* customer routes remarks: which is being exported from this source AS. remarks: remarks: This route object was create because no existing remarks: route object with the same sources was found, and remarks: since some Angola Cables peers filter based on remarks: these objects these routes may be rejected if remarks: this object is not created. remarks: remarks: Please contact peering [at] angolacables.co.ao if you remarks: have any questions regarding this object. remarks: *********************************************** mnt-by: MAINT-AS37468 changed: humberto.galiza [at] angolacables.co.ao 20180928 #23:38:34Z source: RADB last-modified: 2023-11-13T15:54:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.243.236.0/22 descr: Angola Cables proxy-registered route object for customer AS263517 origin: AS263517 remarks: *********************************************** remarks: This object is for *AS263517* customer routes remarks: which is being exported from this source AS. remarks: remarks: This route object was create because no existing remarks: route object with the same sources was found, and remarks: since some Angola Cables peers filter based on remarks: these objects these routes may be rejected if remarks: this object is not created. remarks: remarks: Please contact peering [at] angolacables.co.ao if you remarks: have any questions regarding this object. remarks: *********************************************** mnt-by: MAINT-AS37468 changed: humberto.galiza [at] angolacables.co.ao 20180928 #23:38:34Z source: RADB last-modified: 2023-11-13T15:54:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1320::/32 descr: AS263517 origin: AS263517 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20150313 #18:33:41Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source