diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/core/impl/DistributedIdBlockStore.java b/core/store/dist/src/main/java/org/onlab/onos/store/core/impl/DistributedIdBlockStore.java
new file mode 100644
index 0000000..95a59b8
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/core/impl/DistributedIdBlockStore.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2014 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.onlab.onos.store.core.impl;
+
+import com.hazelcast.core.HazelcastInstance;
+import com.hazelcast.core.IAtomicLong;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.onos.core.IdBlock;
+import org.onlab.onos.core.IdBlockStore;
+import org.onlab.onos.store.hz.StoreService;
+
+import java.util.Map;
+
+/**
+ * Distributed implementation of id block store using Hazelcast.
+ */
+@Component(immediate = true)
+@Service
+public class DistributedIdBlockStore implements IdBlockStore {
+
+    private static final long DEFAULT_BLOCK_SIZE = 1000L;
+
+    protected Map<String, IAtomicLong> topicBlocks;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected StoreService storeService;
+
+    protected HazelcastInstance theInstance;
+
+    @Activate
+    public void activate() {
+        theInstance = storeService.getHazelcastInstance();
+    }
+
+    @Override
+    public IdBlock getIdBlock(String topic) {
+        //TODO need to persist this value across cluster failures
+        Long blockBase = theInstance.getAtomicLong(topic).getAndAdd(DEFAULT_BLOCK_SIZE);
+        return new IdBlock(blockBase, DEFAULT_BLOCK_SIZE);
+    }
+}