diff --git a/core/api/current.txt b/core/api/current.txt
index 053ba18..a76c685 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -47772,6 +47772,12 @@
 package android.telephony.satellite {
 
   @FlaggedApi("com.android.internal.telephony.flags.satellite_state_change_listener") public final class SatelliteManager {
+    method @FlaggedApi("com.android.internal.telephony.flags.satellite_state_change_listener") @RequiresPermission(anyOf={android.Manifest.permission.READ_BASIC_PHONE_STATE, "android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PHONE_STATE, "carrier privileges"}) public void registerStateChangeListener(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.satellite.SatelliteStateChangeListener);
+    method @FlaggedApi("com.android.internal.telephony.flags.satellite_state_change_listener") @RequiresPermission(anyOf={android.Manifest.permission.READ_BASIC_PHONE_STATE, "android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PHONE_STATE, "carrier privileges"}) public void unregisterStateChangeListener(@NonNull android.telephony.satellite.SatelliteStateChangeListener);
+  }
+
+  @FlaggedApi("com.android.internal.telephony.flags.satellite_state_change_listener") public interface SatelliteStateChangeListener {
+    method public void onEnabledStateChanged(boolean);
   }
 
 }
diff --git a/telephony/java/android/telephony/satellite/SatelliteManager.java b/telephony/java/android/telephony/satellite/SatelliteManager.java
index 915ad2c..be02232 100644
--- a/telephony/java/android/telephony/satellite/SatelliteManager.java
+++ b/telephony/java/android/telephony/satellite/SatelliteManager.java
@@ -40,6 +40,7 @@
 import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyFrameworkInitializer;
 import android.telephony.TelephonyManager;
+import android.telephony.TelephonyRegistryManager;
 
 import com.android.internal.telephony.IIntegerConsumer;
 import com.android.internal.telephony.ITelephony;
@@ -110,6 +111,8 @@
      */
     @Nullable private final Context mContext;
 
+    private TelephonyRegistryManager mTelephonyRegistryMgr;
+
     /**
      * Create an instance of the SatelliteManager.
      *
@@ -743,6 +746,65 @@
             "android.telephony.METADATA_SATELLITE_MANUAL_CONNECT_P2P_SUPPORT";
 
     /**
+     * Registers a {@link SatelliteStateChangeListener} to receive callbacks when the satellite
+     * state may have changed.
+     *
+     * <p>The callback method is immediately triggered with latest state on invoking this method if
+     * the state change has been notified before.
+     *
+     * @param executor The {@link Executor} where the {@code listener} will be invoked
+     * @param listener The listener to monitor the satellite state change
+     *
+     * @see SatelliteStateChangeListener
+     * @see TelephonyManager#hasCarrierPrivileges()
+     */
+    @FlaggedApi(Flags.FLAG_SATELLITE_STATE_CHANGE_LISTENER)
+    @RequiresPermission(anyOf = {android.Manifest.permission.READ_BASIC_PHONE_STATE,
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PHONE_STATE,
+            "carrier privileges"})
+    public void registerStateChangeListener(@NonNull @CallbackExecutor Executor executor,
+            @NonNull SatelliteStateChangeListener listener) {
+        if (mContext == null) {
+            throw new IllegalStateException("Telephony service is null");
+        }
+
+        mTelephonyRegistryMgr = mContext.getSystemService(TelephonyRegistryManager.class);
+        if (mTelephonyRegistryMgr == null) {
+            throw new IllegalStateException("Telephony registry service is null");
+        }
+        mTelephonyRegistryMgr.addSatelliteStateChangeListener(executor, listener);
+    }
+
+    /**
+     * Unregisters the {@link SatelliteStateChangeListener} previously registered with
+     * {@link #registerStateChangeListener(Executor, SatelliteStateChangeListener)}.
+     *
+     * <p>It will be a no-op if the {@code listener} is not currently registered.
+     *
+     * @param listener The listener to unregister
+     *
+     * @see SatelliteStateChangeListener
+     * @see TelephonyManager#hasCarrierPrivileges()
+     */
+    @FlaggedApi(Flags.FLAG_SATELLITE_STATE_CHANGE_LISTENER)
+    @RequiresPermission(anyOf = {android.Manifest.permission.READ_BASIC_PHONE_STATE,
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PHONE_STATE,
+            "carrier privileges"})
+    public void unregisterStateChangeListener(@NonNull SatelliteStateChangeListener listener) {
+        if (mContext == null) {
+            throw new IllegalStateException("Telephony service is null");
+        }
+
+        mTelephonyRegistryMgr = mContext.getSystemService(TelephonyRegistryManager.class);
+        if (mTelephonyRegistryMgr == null) {
+            throw new IllegalStateException("Telephony registry service is null");
+        }
+        mTelephonyRegistryMgr.removeSatelliteStateChangeListener(listener);
+    }
+
+    /**
      * Request to enable or disable the satellite modem and demo mode.
      * If satellite modem and cellular modem cannot work concurrently,
      * then this will disable the cellular modem if satellite modem is enabled,
diff --git a/telephony/java/android/telephony/satellite/SatelliteStateChangeListener.java b/telephony/java/android/telephony/satellite/SatelliteStateChangeListener.java
new file mode 100644
index 0000000..3aa910d
--- /dev/null
+++ b/telephony/java/android/telephony/satellite/SatelliteStateChangeListener.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2024 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 android.telephony.satellite;
+
+import android.annotation.FlaggedApi;
+
+import com.android.internal.telephony.flags.Flags;
+
+import java.util.concurrent.Executor;
+
+/**
+ * A listener interface to monitor satellite state change events.
+ *
+ * <p>Call
+ * {@link SatelliteManager#registerStateChangeListener(Executor, SatelliteStateChangeListener)}
+ * to monitor. Call
+ * {@link SatelliteManager#unregisterStateChangeListener(SatelliteStateChangeListener)} to cancel.
+ *
+ * @see SatelliteManager#registerStateChangeListener(Executor, SatelliteStateChangeListener)
+ * @see SatelliteManager#unregisterStateChangeListener(SatelliteStateChangeListener)
+ */
+@FlaggedApi(Flags.FLAG_SATELLITE_STATE_CHANGE_LISTENER)
+public interface SatelliteStateChangeListener {
+    /**
+     * Called when satellite modem enabled state may have changed.
+     *
+     * <p>Note:there is no guarantee that this callback will only be invoked upon a change of state.
+     * In other word, in some cases, the callback may report with the same enabled states. It is the
+     * caller's responsibility to filter uninterested states.
+     *
+     * <p>Note:satellite enabled state is a device state that is NOT associated with subscription or
+     * SIM slot.
+     *
+     * @param isEnabled {@code true} means satellite modem is enabled.
+     */
+    void onEnabledStateChanged(boolean isEnabled);
+}