diff --git a/api/system-current.txt b/api/system-current.txt
index ee9276bf6436c..7276b37ba20b4 100755
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -9243,6 +9243,7 @@ package android.provider {
     field public static final String APN_SET_ID = "apn_set_id";
     field public static final int CARRIER_EDITED = 4; // 0x4
     field public static final String EDITED_STATUS = "edited";
+    field public static final int MATCH_ALL_APN_SET_ID = -1; // 0xffffffff
     field public static final String MAX_CONNECTIONS = "max_conns";
     field public static final String MODEM_PERSIST = "modem_cognitive";
     field public static final String MTU = "mtu";
diff --git a/core/java/android/provider/Telephony.java b/core/java/android/provider/Telephony.java
index fab70844989b8..2c2d127b0414e 100644
--- a/core/java/android/provider/Telephony.java
+++ b/core/java/android/provider/Telephony.java
@@ -3956,15 +3956,23 @@ public final class Telephony {
         public static final String APN_SET_ID = "apn_set_id";
 
         /**
-         * Possible value for the {@link #APN_SET_ID} field. By default APNs will not belong to a
-         * set. If the user manually selects an APN without apn set id, there is no need to
-         * prioritize any specific APN set ids.
+         * Possible value for the {@link #APN_SET_ID} field. By default APNs are added to set 0.
          * <p>Type: INTEGER</p>
          * @hide
          */
         @SystemApi
         public static final int NO_APN_SET_ID = 0;
 
+        /**
+         * Possible value for the {@link #APN_SET_ID} field.
+         * APNs with MATCH_ALL_APN_SET_ID will be used regardless of any set ids of
+         * the selected APN.
+         * <p>Type: INTEGER</p>
+         * @hide
+         */
+        @SystemApi
+        public static final int MATCH_ALL_APN_SET_ID = -1;
+
         /**
          * A unique carrier id associated with this APN
          * {@see TelephonyManager#getSimCarrierId()}
diff --git a/non-updatable-api/system-current.txt b/non-updatable-api/system-current.txt
index 6b5c7376d5819..6a6914a65a736 100644
--- a/non-updatable-api/system-current.txt
+++ b/non-updatable-api/system-current.txt
@@ -8125,6 +8125,7 @@ package android.provider {
     field public static final String APN_SET_ID = "apn_set_id";
     field public static final int CARRIER_EDITED = 4; // 0x4
     field public static final String EDITED_STATUS = "edited";
+    field public static final int MATCH_ALL_APN_SET_ID = -1; // 0xffffffff
     field public static final String MAX_CONNECTIONS = "max_conns";
     field public static final String MODEM_PERSIST = "modem_cognitive";
     field public static final String MTU = "mtu";
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index c9c845d9476c7..d9fdd26686ab3 100755
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -3905,10 +3905,23 @@ public class CarrierConfigManager {
      * Indicating whether DUN APN should be disabled when the device is roaming. In that case,
      * the default APN (i.e. internet) will be used for tethering.
      *
+     * This config is only available when using Preset APN(not user edited) as Preferred APN.
+     *
      * @hide
      */
-    public static final String KEY_DISABLE_DUN_APN_WHILE_ROAMING =
-            "disable_dun_apn_while_roaming";
+    public static final String KEY_DISABLE_DUN_APN_WHILE_ROAMING_WITH_PRESET_APN_BOOL =
+            "disable_dun_apn_while_roaming_with_preset_apn_bool";
+
+    /**
+     * Where there is no preferred APN, specifies the carrier's default preferred APN.
+     * Specifies the {@link android.provider.Telephony.Carriers.APN} of the default preferred apn.
+     *
+     * This config is only available with Preset APN(not user edited).
+     *
+     * @hide
+     */
+    public static final String KEY_DEFAULT_PREFERRED_APN_NAME_STRING =
+            "default_preferred_apn_name_string";
 
     /** The default value for every variable. */
     private final static PersistableBundle sDefaults;
@@ -4448,7 +4461,8 @@ public class CarrierConfigManager {
                 "ims:2", "cbs:2", "ia:2", "emergency:2", "mcx:3", "xcap:3"
         });
         sDefaults.putStringArray(KEY_MISSED_INCOMING_CALL_SMS_PATTERN_STRING_ARRAY, new String[0]);
-        sDefaults.putBoolean(KEY_DISABLE_DUN_APN_WHILE_ROAMING, false);
+        sDefaults.putBoolean(KEY_DISABLE_DUN_APN_WHILE_ROAMING_WITH_PRESET_APN_BOOL, false);
+        sDefaults.putString(KEY_DEFAULT_PREFERRED_APN_NAME_STRING, "");
     }
 
     /**