diff --git a/packages/SettingsLib/src/com/android/settingslib/net/DataUsageController.java b/packages/SettingsLib/src/com/android/settingslib/net/DataUsageController.java
index f30de13..ea3c1d9 100644
--- a/packages/SettingsLib/src/com/android/settingslib/net/DataUsageController.java
+++ b/packages/SettingsLib/src/com/android/settingslib/net/DataUsageController.java
@@ -110,13 +110,7 @@
     }
 
     public DataUsageInfo getDataUsageInfo() {
-        final String subscriberId = getActiveSubscriberId();
-        if (subscriberId == null) {
-            return warn("no subscriber id");
-        }
-        NetworkTemplate template = NetworkTemplate.buildTemplateMobileAll(subscriberId);
-        template = NetworkTemplate.normalize(template, getTelephonyManager()
-                .getMergedSubscriberIds());
+        NetworkTemplate template = DataUsageUtils.getMobileTemplate(mContext, mSubscriptionId);
 
         return getDataUsageInfo(template);
     }
diff --git a/packages/SettingsLib/src/com/android/settingslib/net/DataUsageUtils.java b/packages/SettingsLib/src/com/android/settingslib/net/DataUsageUtils.java
new file mode 100644
index 0000000..de38e8a
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/net/DataUsageUtils.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * 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 com.android.settingslib.net;
+
+import android.content.Context;
+import android.net.NetworkTemplate;
+import android.os.ParcelUuid;
+import android.telephony.SubscriptionInfo;
+import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Utils class for data usage
+ */
+public class DataUsageUtils {
+    private static final String TAG = "DataUsageUtils";
+
+    /**
+     * Return mobile NetworkTemplate based on {@code subId}
+     */
+    public static NetworkTemplate getMobileTemplate(Context context, int subId) {
+        final TelephonyManager telephonyManager = context.getSystemService(
+                TelephonyManager.class);
+        final SubscriptionManager subscriptionManager = context.getSystemService(
+                SubscriptionManager.class);
+        final SubscriptionInfo info = subscriptionManager.getActiveSubscriptionInfo(subId);
+        final NetworkTemplate mobileAll = NetworkTemplate.buildTemplateMobileAll(
+                telephonyManager.getSubscriberId(subId));
+
+        if (info == null) {
+            Log.i(TAG, "Subscription is not active: " + subId);
+            return mobileAll;
+        }
+        final ParcelUuid groupUuid = info.getGroupUuid();
+        if (groupUuid == null) {
+            Log.i(TAG, "Subscription doesn't have valid group uuid: " + subId);
+            return mobileAll;
+        }
+
+        // Otherwise merge other subscriberId to create new NetworkTemplate
+        final List<SubscriptionInfo> groupInfos = subscriptionManager.getSubscriptionsInGroup(
+                groupUuid);
+        final List<String> mergedSubscriberIds = new ArrayList<>();
+        for (SubscriptionInfo subInfo : groupInfos) {
+            final String subscriberId = telephonyManager.getSubscriberId(
+                    subInfo.getSubscriptionId());
+            if (subscriberId != null) {
+                mergedSubscriberIds.add(subscriberId);
+            }
+        }
+        return NetworkTemplate.normalize(mobileAll, mergedSubscriberIds.toArray(new String[0]));
+    }
+}
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/net/DataUsageUtilsTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/net/DataUsageUtilsTest.java
new file mode 100644
index 0000000..dc33cfe
--- /dev/null
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/net/DataUsageUtilsTest.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * 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 com.android.settingslib.net;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.net.NetworkTemplate;
+import android.os.ParcelUuid;
+import android.os.RemoteException;
+import android.telephony.SubscriptionInfo;
+import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RunWith(RobolectricTestRunner.class)
+public class DataUsageUtilsTest {
+
+    private static final int SUB_ID = 1;
+    private static final int SUB_ID_2 = 2;
+    private static final String SUBSCRIBER_ID = "Test Subscriber";
+    private static final String SUBSCRIBER_ID_2 = "Test Subscriber 2";
+
+    @Mock
+    private TelephonyManager mTelephonyManager;
+    @Mock
+    private SubscriptionManager mSubscriptionManager;
+    @Mock
+    private SubscriptionInfo mInfo1;
+    @Mock
+    private SubscriptionInfo mInfo2;
+    @Mock
+    private ParcelUuid mParcelUuid;
+    private Context mContext;
+    private List<SubscriptionInfo> mInfos;
+
+    @Before
+    public void setUp() throws RemoteException {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = spy(RuntimeEnvironment.application);
+        when(mContext.getSystemService(TelephonyManager.class)).thenReturn(mTelephonyManager);
+        when(mContext.getSystemService(SubscriptionManager.class)).thenReturn(mSubscriptionManager);
+        when(mTelephonyManager.getSubscriberId(SUB_ID)).thenReturn(SUBSCRIBER_ID);
+        when(mTelephonyManager.getSubscriberId(SUB_ID_2)).thenReturn(SUBSCRIBER_ID_2);
+        when(mInfo1.getSubscriptionId()).thenReturn(SUB_ID);
+        when(mInfo2.getSubscriptionId()).thenReturn(SUB_ID_2);
+
+        mInfos = new ArrayList<>();
+        mInfos.add(mInfo1);
+        mInfos.add(mInfo2);
+        when(mSubscriptionManager.getSubscriptionsInGroup(mParcelUuid)).thenReturn(mInfos);
+    }
+
+    @Test
+    public void getMobileTemplate_infoNull_returnMobileAll() {
+        when(mSubscriptionManager.getActiveSubscriptionInfo(SUB_ID)).thenReturn(null);
+
+        final NetworkTemplate networkTemplate = DataUsageUtils.getMobileTemplate(mContext, SUB_ID);
+        assertThat(networkTemplate.matchesSubscriberId(SUBSCRIBER_ID)).isTrue();
+        assertThat(networkTemplate.matchesSubscriberId(SUBSCRIBER_ID_2)).isFalse();
+    }
+
+    @Test
+    public void getMobileTemplate_groupUuidNull_returnMobileAll() {
+        when(mSubscriptionManager.getActiveSubscriptionInfo(SUB_ID)).thenReturn(mInfo1);
+        when(mInfo1.getGroupUuid()).thenReturn(null);
+
+        final NetworkTemplate networkTemplate = DataUsageUtils.getMobileTemplate(mContext, SUB_ID);
+        assertThat(networkTemplate.matchesSubscriberId(SUBSCRIBER_ID)).isTrue();
+        assertThat(networkTemplate.matchesSubscriberId(SUBSCRIBER_ID_2)).isFalse();
+    }
+
+    @Test
+    public void getMobileTemplate_groupUuidExist_returnMobileMerged() {
+        when(mSubscriptionManager.getActiveSubscriptionInfo(SUB_ID)).thenReturn(mInfo1);
+        when(mInfo1.getGroupUuid()).thenReturn(mParcelUuid);
+
+        final NetworkTemplate networkTemplate = DataUsageUtils.getMobileTemplate(mContext, SUB_ID);
+        assertThat(networkTemplate.matchesSubscriberId(SUBSCRIBER_ID)).isTrue();
+        assertThat(networkTemplate.matchesSubscriberId(SUBSCRIBER_ID_2)).isTrue();
+    }
+}