diff --git a/core/store/dist/src/main/java/org/onosproject/store/region/impl/DistributedRegionStore.java b/core/store/dist/src/main/java/org/onosproject/store/region/impl/DistributedRegionStore.java
index 6d70376..e101514 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/region/impl/DistributedRegionStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/region/impl/DistributedRegionStore.java
@@ -27,6 +27,7 @@
 import org.onlab.util.Identifier;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.HostId;
 import org.onosproject.net.region.DefaultRegion;
 import org.onosproject.net.region.Region;
 import org.onosproject.net.region.RegionEvent;
@@ -78,6 +79,7 @@
 
     private ConsistentMap<RegionId, Set<DeviceId>> membershipRepo;
     private Map<RegionId, Set<DeviceId>> regionDevices;
+    private Map<RegionId, Set<HostId>> regionHosts;
 
     private Map<DeviceId, Region> regionsByDevice = new HashMap<>();
 
@@ -140,6 +142,12 @@
     }
 
     @Override
+    public Set<HostId> getRegionHosts(RegionId regionId) {
+        Set<HostId> hostIds = regionHosts.get(regionId);
+        return hostIds != null ? ImmutableSet.copyOf(hostIds) : ImmutableSet.of();
+    }
+
+    @Override
     public Region createRegion(RegionId regionId, String name, Region.Type type,
                                List<Set<NodeId>> masterNodeIds) {
         return regionsRepo.compute(regionId, (id, region) -> {