diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/soam/loss/DefaultLaStatHistory.java b/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/soam/loss/DefaultLaStatHistory.java
new file mode 100644
index 0000000..6203bbd
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/soam/loss/DefaultLaStatHistory.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * 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.incubator.net.l2monitoring.soam.loss;
+
+import java.time.Duration;
+import java.time.Instant;
+
+import org.onosproject.incubator.net.l2monitoring.soam.SoamId;
+
+/**
+ * The default implementation of LossAvailabilityStatHistory.
+ * {@link org.onosproject.incubator.net.l2monitoring.soam.loss.LossAvailabilityStatHistory}.
+ */
+public final class DefaultLaStatHistory extends DefaultLaStat
+                        implements LossAvailabilityStatHistory {
+    private final Instant endTime;
+    private final SoamId historyStatsId;
+
+    private DefaultLaStatHistory(DefaultLaStatHistoryBuilder builder) {
+        super(builder);
+        this.endTime = builder.endTime;
+        this.historyStatsId = builder.historyStatsId;
+    }
+
+    @Override
+    public Instant endTime() {
+        return endTime;
+    }
+
+    @Override
+    public SoamId historyStatsId() {
+        return historyStatsId;
+    }
+
+    public static LaStatHistoryBuilder builder(Duration elapsedTime,
+            boolean suspectStatus, SoamId historyStatsId, Instant endTime) {
+        return new DefaultLaStatHistoryBuilder(elapsedTime, suspectStatus,
+                historyStatsId, endTime);
+    }
+
+    private static final class DefaultLaStatHistoryBuilder
+                extends DefaultLaStatBuilder implements LaStatHistoryBuilder {
+        private Instant endTime;
+        private SoamId historyStatsId;
+
+        protected DefaultLaStatHistoryBuilder(Duration elapsedTime,
+                boolean suspectStatus, SoamId historyStatsId, Instant endTime) {
+            super(elapsedTime, suspectStatus);
+            this.historyStatsId = historyStatsId;
+            this.endTime = endTime;
+        }
+
+        @Override
+        public LossAvailabilityStatHistory build() {
+            return new DefaultLaStatHistory(this);
+        }
+    }
+}