These entries are queried from radb.net using whois, you can try my project getting these.
:AS268041 route6: 2804:5710::/32 origin: AS268041 descr: Angola Cables proxy-registered route object for customer AS268041 remarks: *********************************************** remarks: This object is for *AS268041* customer routes remarks: which is being exported from this source AS. 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: Please contact peering [at] angolacables.co.ao if you remarks: have any questions regarding this object. remarks: *********************************************** changed: noc [at] angolacables.co.ao 20181207 #20:27:23Z source: RADB mnt-by: MAINT-AS37468 last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source