diff --git a/cli/src/main/java/org/onlab/onos/cli/RolesCommand.java b/cli/src/main/java/org/onlab/onos/cli/RolesCommand.java
new file mode 100644
index 0000000..0456e4a
--- /dev/null
+++ b/cli/src/main/java/org/onlab/onos/cli/RolesCommand.java
@@ -0,0 +1,74 @@
+package org.onlab.onos.cli;
+
+import static com.google.common.collect.Lists.newArrayList;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.onos.cluster.NodeId;
+import org.onlab.onos.mastership.MastershipService;
+import org.onlab.onos.net.Device;
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.net.device.DeviceService;
+
+
+/**
+ * Lists mastership roles of nodes for each device.
+ */
+@Command(scope = "onos", name = "roles",
+        description = "Lists mastership roles of nodes for each device.")
+public class RolesCommand extends AbstractShellCommand {
+
+    private static final String FMT_HDR = "%s: master=%s\nstandbys: %s nodes";
+    private static final String FMT_SB = "\t%s";
+
+    @Override
+    protected void execute() {
+        DeviceService deviceService = get(DeviceService.class);
+        MastershipService roleService = get(MastershipService.class);
+
+        for (Device d : getSortedDevices(deviceService)) {
+            DeviceId did = d.id();
+            printRoles(roleService, did);
+        }
+    }
+
+    /**
+     * Returns the list of devices sorted using the device ID URIs.
+     *
+     * @param service device service
+     * @return sorted device list
+     */
+    protected static List<Device> getSortedDevices(DeviceService service) {
+        List<Device> devices = newArrayList(service.getDevices());
+        Collections.sort(devices, Comparators.ELEMENT_COMPARATOR);
+        return devices;
+    }
+
+    /**
+     * Prints the role information for a device.
+     *
+     * @param deviceId the ID of the device
+     * @param master the current master
+     */
+    protected void printRoles(MastershipService service, DeviceId deviceId) {
+        List<NodeId> nodes = service.getNodesFor(deviceId);
+        NodeId first = null;
+        NodeId master = null;
+
+        if (!nodes.isEmpty()) {
+            first = nodes.get(0);
+        }
+        if (first != null &&
+                first.equals(service.getMasterFor(deviceId))) {
+            master = nodes.get(0);
+            nodes.remove(master);
+        }
+        print(FMT_HDR, deviceId, master == null ? "NONE" : master, nodes.size());
+
+        for (NodeId nid : nodes) {
+            print(FMT_SB, nid);
+        }
+    }
+}