diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/SignalClusterView.java b/packages/SystemUI/src/com/android/systemui/statusbar/SignalClusterView.java
index 960e4cf47001e..988d537f6c2cb 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/SignalClusterView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/SignalClusterView.java
@@ -221,6 +221,7 @@ public class SignalClusterView
 
         apply();
         applyIconTint();
+        mNC.addSignalCallback(this);
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index c152171f77cf7..ef16388502f59 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -995,7 +995,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         SignalClusterView signalCluster =
                 (SignalClusterView) containerView.findViewById(R.id.signal_cluster);
         if (signalCluster != null) {
-            mNetworkController.addSignalCallback(signalCluster);
             signalCluster.setSecurityController(mSecurityController);
             signalCluster.setNetworkController(mNetworkController);
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/EthernetSignalController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/EthernetSignalController.java
index bd36462ca6128..159bd41a20948 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/EthernetSignalController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/EthernetSignalController.java
@@ -19,6 +19,7 @@ import android.content.Context;
 import android.net.NetworkCapabilities;
 
 import com.android.systemui.statusbar.policy.NetworkController.IconState;
+import com.android.systemui.statusbar.policy.NetworkController.SignalCallback;
 
 import java.util.BitSet;
 
@@ -46,12 +47,12 @@ public class EthernetSignalController extends
     }
 
     @Override
-    public void notifyListeners() {
+    public void notifyListeners(SignalCallback callback) {
         boolean ethernetVisible = mCurrentState.connected;
         String contentDescription = getStringIfExists(getContentDescription());
 
         // TODO: wire up data transfer using WifiSignalPoller.
-        mCallbackHandler.setEthernetIndicators(new IconState(ethernetVisible, getCurrentIconId(),
+        callback.setEthernetIndicators(new IconState(ethernetVisible, getCurrentIconId(),
                 contentDescription));
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java
index 8fd4d9cd326a5..80dcfb6dfe2c8 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/MobileSignalController.java
@@ -34,6 +34,7 @@ import com.android.internal.telephony.TelephonyIntents;
 import com.android.internal.telephony.cdma.EriInfo;
 import com.android.systemui.R;
 import com.android.systemui.statusbar.policy.NetworkController.IconState;
+import com.android.systemui.statusbar.policy.NetworkController.SignalCallback;
 import com.android.systemui.statusbar.policy.NetworkControllerImpl.Config;
 import com.android.systemui.statusbar.policy.NetworkControllerImpl.SubscriptionDefaults;
 
@@ -198,7 +199,7 @@ public class MobileSignalController extends SignalController<
     }
 
     @Override
-    public void notifyListeners() {
+    public void notifyListeners(SignalCallback callback) {
         MobileIconGroup icons = getIcons();
 
         String contentDescription = getStringIfExists(getContentDescription());
@@ -231,7 +232,7 @@ public class MobileSignalController extends SignalController<
                 || mCurrentState.iconGroup == TelephonyIcons.ROAMING
                 || mCurrentState.iconGroup == TelephonyIcons.DATA_DISABLED;
         int typeIcon = showDataIcon ? icons.mDataType : 0;
-        mCallbackHandler.setMobileDataIndicators(statusIcon, qsIcon, typeIcon, qsTypeIcon,
+        callback.setMobileDataIndicators(statusIcon, qsIcon, typeIcon, qsTypeIcon,
                 activityIn, activityOut, dataContentDescription, description, icons.mIsWide,
                 mSubscriptionInfo.getSubscriptionId());
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
index 8193b52b569ca..40eb71d8327b1 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
@@ -322,16 +322,16 @@ public class NetworkControllerImpl extends BroadcastReceiver
     }
 
     public void addSignalCallback(SignalCallback cb) {
-        mCallbackHandler.setListening(cb, true);
-        mCallbackHandler.setSubs(mCurrentSubscriptions);
-        mCallbackHandler.setIsAirplaneMode(new IconState(mAirplaneMode,
+        cb.setSubs(mCurrentSubscriptions);
+        cb.setIsAirplaneMode(new IconState(mAirplaneMode,
                 TelephonyIcons.FLIGHT_MODE_ICON, R.string.accessibility_airplane_mode, mContext));
-        mCallbackHandler.setNoSims(mHasNoSims);
-        mWifiSignalController.notifyListeners();
-        mEthernetSignalController.notifyListeners();
+        cb.setNoSims(mHasNoSims);
+        mWifiSignalController.notifyListeners(cb);
+        mEthernetSignalController.notifyListeners(cb);
         for (MobileSignalController mobileSignalController : mMobileSignalControllers.values()) {
-            mobileSignalController.notifyListeners();
+            mobileSignalController.notifyListeners(cb);
         }
+        mCallbackHandler.setListening(cb, true);
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/SignalController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SignalController.java
index c954d081329d8..4cfd1c7fe6fd6 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/SignalController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SignalController.java
@@ -18,6 +18,7 @@ package com.android.systemui.statusbar.policy;
 import android.content.Context;
 import android.text.format.DateFormat;
 import android.util.Log;
+import com.android.systemui.statusbar.policy.NetworkController.SignalCallback;
 
 import java.io.PrintWriter;
 import java.util.BitSet;
@@ -48,7 +49,7 @@ public abstract class SignalController<T extends SignalController.State,
     // is aware of current state.
     protected final NetworkControllerImpl mNetworkController;
 
-    protected final CallbackHandler mCallbackHandler;
+    private final CallbackHandler mCallbackHandler;
 
     // Save the previous HISTORY_SIZE states for logging.
     private final State[] mHistory;
@@ -198,12 +199,16 @@ public abstract class SignalController<T extends SignalController.State,
         }
     }
 
+    public final void notifyListeners() {
+        notifyListeners(mCallbackHandler);
+    }
+
     /**
      * Trigger callbacks based on current state.  The callbacks should be completely
      * based on current state, and only need to be called in the scenario where
      * mCurrentState != mLastState.
      */
-    public abstract void notifyListeners();
+    public abstract void notifyListeners(SignalCallback callback);
 
     /**
      * Generate a blank T.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java
index cc98eb647bdaa..a6ed04f46c957 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java
@@ -28,6 +28,7 @@ import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.AsyncChannel;
 import com.android.settingslib.wifi.WifiStatusTracker;
 import com.android.systemui.statusbar.policy.NetworkController.IconState;
+import com.android.systemui.statusbar.policy.NetworkController.SignalCallback;
 
 import java.util.Objects;
 
@@ -72,7 +73,7 @@ public class WifiSignalController extends
     }
 
     @Override
-    public void notifyListeners() {
+    public void notifyListeners(SignalCallback callback) {
         // only show wifi in the cluster if connected or if wifi-only
         boolean wifiVisible = mCurrentState.enabled
                 && (mCurrentState.connected || !mHasMobileData);
@@ -83,7 +84,7 @@ public class WifiSignalController extends
         IconState statusIcon = new IconState(wifiVisible, getCurrentIconId(), contentDescription);
         IconState qsIcon = new IconState(mCurrentState.connected, getQsCurrentIconId(),
                 contentDescription);
-        mCallbackHandler.setWifiIndicators(mCurrentState.enabled, statusIcon, qsIcon,
+        callback.setWifiIndicators(mCurrentState.enabled, statusIcon, qsIcon,
                 ssidPresent && mCurrentState.activityIn, ssidPresent && mCurrentState.activityOut,
                 wifiDesc);
     }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
index ebd538473c1d3..60d33fa0f191f 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
@@ -32,6 +32,7 @@ import com.android.internal.telephony.cdma.EriInfo;
 import com.android.settingslib.net.DataUsageController;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.statusbar.policy.NetworkController.IconState;
+import com.android.systemui.statusbar.policy.NetworkController.SignalCallback;
 import com.android.systemui.statusbar.policy.NetworkControllerImpl.Config;
 import com.android.systemui.statusbar.policy.NetworkControllerImpl.SubscriptionDefaults;
 import org.mockito.ArgumentCaptor;
@@ -100,7 +101,7 @@ public class NetworkControllerBaseTest extends SysuiTestCase {
 
         // Trigger blank callbacks to always get the current state (some tests don't trigger
         // changes from default state).
-        mNetworkController.addSignalCallback(null);
+        mNetworkController.addSignalCallback(mock(SignalCallback.class));
         mNetworkController.addEmergencyListener(null);
     }