diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java
index 2e852e8..21f721c 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java
@@ -17,6 +17,7 @@
 
 import com.google.common.annotations.Beta;
 import org.onlab.osgi.ServiceDirectory;
+import org.onosproject.core.ApplicationId;
 import org.onosproject.net.DeviceId;
 
 import java.util.Set;
@@ -112,4 +113,12 @@
      * @return a service directory
      */
     ServiceDirectory getServiceDirectory();
+
+    /**
+     * Returns the application identifier for a virtual network.
+     *
+     * @param networkId network identifier
+     * @return an representative application identifier for a virtual network
+     */
+    ApplicationId getVirtualNetworkApplicationId(NetworkId networkId);
 }