diff --git a/cli/src/main/java/org/onosproject/cli/net/RegionListCommand.java b/cli/src/main/java/org/onosproject/cli/net/RegionListCommand.java
new file mode 100644
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+++ b/cli/src/main/java/org/onosproject/cli/net/RegionListCommand.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2016 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 org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.cli.Comparators;
+import org.onosproject.net.region.Region;
+import org.onosproject.net.region.RegionId;
+import org.onosproject.net.region.RegionService;
+
+import java.util.Collections;
+import java.util.List;
+
+import static com.google.common.collect.Lists.newArrayList;
+
+/**
+ * List Region details including membership.
+ */
+@Command(scope = "onos", name = "regions",
+        description = "List Region details including membership")
+public class RegionListCommand extends AbstractShellCommand {
+
+    private static final String FMT = "id=%s, name=%s, type=%s";
+    private static final String FMT_MASTER = "  master=%s";
+
+    @Argument(index = 0, name = "id", description = "Region ID",
+            required = false, multiValued = false)
+    String id = null;
+
+    @Override
+    protected void execute() {
+        RegionService regionService = get(RegionService.class);
+
+        if (id == null) {
+            for (Region region : getSortedRegions(regionService)) {
+                printRegion(region);
+            }
+        } else {
+            Region region = regionService.getRegion(RegionId.regionId(id));
+
+            if (region == null) {
+                error("No such region %s", id);
+            } else {
+                printRegion(region);
+            }
+        }
+    }
+
+    /**
+     * Returns the list of regions sorted using the region identifier.
+     *
+     * @param service region service
+     * @return sorted region list
+     */
+    protected List<Region> getSortedRegions(RegionService service) {
+        List<Region> regions = newArrayList(service.getRegions());
+        Collections.sort(regions, Comparators.REGION_COMPARATOR);
+        return regions;
+    }
+
+    private void printRegion(Region region) {
+        print(FMT, region.id(), region.name(), region.type());
+        region.masters().forEach(m -> print(FMT_MASTER, m));
+    }
+}