diff --git a/cli/src/main/java/org/onosproject/cli/net/AllocationsCommand.java b/cli/src/main/java/org/onosproject/cli/net/AllocationsCommand.java
new file mode 100644
index 0000000..353ab3a
--- /dev/null
+++ b/cli/src/main/java/org/onosproject/cli/net/AllocationsCommand.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.cli.net;
+
+import static org.onosproject.net.DeviceId.deviceId;
+
+import java.util.Collection;
+import java.util.stream.StreamSupport;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.commands.Option;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.OchSignal;
+import org.onosproject.net.Port;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.newresource.ResourceAllocation;
+import org.onosproject.net.newresource.ResourcePath;
+import org.onosproject.net.newresource.ResourceService;
+
+import com.google.common.base.Strings;
+
+/**
+ * Lists allocated resources.
+ */
+@Command(scope = "onos", name = "allocations",
+         description = "Lists allocated resources")
+public class AllocationsCommand extends AbstractShellCommand {
+
+    // TODO add other resource types
+    @Option(name = "-l", aliases = "--lambda", description = "Lambda Resource",
+            required = false, multiValued = false)
+    private boolean lambda = true;
+
+    @Argument(index = 0, name = "deviceIdString", description = "Device ID",
+              required = false, multiValued = false)
+    String deviceIdStr = null;
+
+    @Argument(index = 1, name = "portNumberString", description = "PortNumber",
+              required = false, multiValued = false)
+    String portNumberStr = null;
+
+
+
+    private DeviceService deviceService;
+    private ResourceService resourceService;
+
+    @Override
+    protected void execute() {
+        deviceService = get(DeviceService.class);
+        resourceService = get(ResourceService.class);
+
+
+        if (deviceIdStr != null && portNumberStr != null) {
+            DeviceId deviceId = deviceId(deviceIdStr);
+            PortNumber portNumber = PortNumber.fromString(portNumberStr);
+
+            printAllocation(deviceId, portNumber, 0);
+        } else if (deviceIdStr != null) {
+            DeviceId deviceId = deviceId(deviceIdStr);
+
+            printAllocation(deviceId, 0);
+        } else {
+            printAllocation();
+        }
+
+    }
+
+    private void printAllocation() {
+        print("ROOT");
+        StreamSupport.stream(deviceService.getAvailableDevices().spliterator(), false)
+            .map(Device::id)
+            .forEach(did -> printAllocation(did, 1));
+    }
+
+    private void printAllocation(DeviceId did, int level) {
+        print("%s%s", Strings.repeat(" ", level), did);
+        StreamSupport.stream(deviceService.getPorts(did).spliterator(), false)
+            .map(Port::number)
+            .forEach(num -> printAllocation(did, num, level + 1));
+    }
+
+    private void printAllocation(DeviceId did, PortNumber num, int level) {
+        if (level == 0) {
+            // print DeviceId when Port was directly specified.
+            print("%s", did);
+        }
+        print("%s%s", Strings.repeat(" ", level), asVerboseString(num));
+
+        // TODO: Current design cannot deal with sub-resources
+        //        (e.g., TX/RX under Port)
+
+        ResourcePath path = ResourcePath.discrete(did, num);
+        if (lambda) {
+            //print("Lambda resources:");
+            Collection<ResourceAllocation> allocations
+                = resourceService.getResourceAllocations(path, OchSignal.class);
+
+            for (ResourceAllocation a : allocations) {
+                print("%s%s allocated by %s", Strings.repeat(" ", level + 1),
+                                          a.resource().last(), asVerboseString(a.consumer()));
+            }
+        }
+    }
+
+    /**
+     * Add type name if the toString does not start with them.
+     *
+     * e.g., IntentId#toString result in "42"
+     *       asVerboseString(id) will result in "IntentId:42"
+     *
+     * @param obj non-null Object to print.
+     * @return verbose String representation
+     */
+    private static String asVerboseString(Object obj) {
+        String name = obj.getClass().getSimpleName();
+        String toString = String.valueOf(obj);
+        if (toString.startsWith(name)) {
+            return toString;
+        } else {
+            return String.format("%s:%s", name, toString);
+        }
+    }
+
+}