diff --git a/core/api/src/main/java/org/onlab/onos/net/HostLocation.java b/core/api/src/main/java/org/onlab/onos/net/HostLocation.java
index 60c5945..3fc3127 100644
--- a/core/api/src/main/java/org/onlab/onos/net/HostLocation.java
+++ b/core/api/src/main/java/org/onlab/onos/net/HostLocation.java
@@ -1,11 +1,18 @@
 package org.onlab.onos.net;
 
+import static org.onlab.onos.net.PortNumber.P0;
+
 /**
  * Representation of a network edge location where an end-station host is
  * connected.
  */
 public class HostLocation extends ConnectPoint {
 
+    /**
+     * Represents a no location or an unknown location.
+     */
+    public static final HostLocation NONE = new HostLocation(DeviceId.NONE, P0, 0L);
+
     // Note that time is explicitly excluded from the notion of equality.
     private final long time;