diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 8b9fc0fbf5b21..18936c2f84570 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -4929,6 +4929,14 @@ public class CarrierConfigManager {
     public static final String KEY_DISPLAY_NO_DATA_NOTIFICATION_ON_PERMANENT_FAILURE_BOOL =
             "display_no_data_notification_on_permanent_failure_bool";
 
+    /**
+     * Determine whether unthrottle data retry when tracking area code (TAC/LAC) from cell changes
+     *
+     * @hide
+     */
+    public static final String KEY_UNTHROTTLE_DATA_RETRY_WHEN_TAC_CHANGES_BOOL =
+            "unthrottle_data_retry_when_tac_changes_bool";
+
     /** The default value for every variable. */
     private final static PersistableBundle sDefaults;
 
@@ -5508,6 +5516,7 @@ public class CarrierConfigManager {
         sDefaults.putBoolean(KEY_DISPLAY_CALL_STRENGTH_INDICATOR_BOOL, true);
         sDefaults.putString(KEY_CARRIER_PROVISIONING_APP_STRING, "");
         sDefaults.putBoolean(KEY_DISPLAY_NO_DATA_NOTIFICATION_ON_PERMANENT_FAILURE_BOOL, false);
+        sDefaults.putBoolean(KEY_UNTHROTTLE_DATA_RETRY_WHEN_TAC_CHANGES_BOOL, false);
     }
 
     /**
diff --git a/telephony/java/com/android/internal/telephony/DctConstants.java b/telephony/java/com/android/internal/telephony/DctConstants.java
index 1e5d59872208e..409c838cb3e3c 100644
--- a/telephony/java/com/android/internal/telephony/DctConstants.java
+++ b/telephony/java/com/android/internal/telephony/DctConstants.java
@@ -114,7 +114,6 @@ public class DctConstants {
     public static final int EVENT_CARRIER_CONFIG_CHANGED = BASE + 54;
     public static final int EVENT_SIM_STATE_UPDATED = BASE + 55;
     public static final int EVENT_APN_UNTHROTTLED = BASE + 56;
-    public static final int EVENT_AIRPLANE_MODE_CHANGED = BASE + 57;
 
     /***** Constants *****/