Search notes:

Oracle: DBA_HOST_ACLS

dba_hsot_acls shows access control lists assigned to restrict access to network hosts through PL/SQL network utility packages. 
select
   hcl.host,
   hcl.lower_port,
   hcl.upper_port,
   hcl.acl_owner,
   xce.ace_order,
   xce.start_date,
   xce.end_date,
   xce.grant_type,
   xce.inverted_principal,
   xce.principal,
   xce.principal_type,
   xce.privilege,
   xce.security_class,
   xce.security_class_owner,
   hcl.acl,
   hcl.aclid
from
   dba_host_acls hcl                        left join
   dba_xs_aces   xce on hcl.acl = xce.acl;

See also

data dictionary

Index

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