diff --git a/core/api/current.txt b/core/api/current.txt
index 07bebbe..82393f4 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -34219,6 +34219,7 @@
     method public static android.net.Uri getUriForSubscriptionIdAndField(int, String);
     field public static final String AUTHORITY = "service-state";
     field public static final android.net.Uri CONTENT_URI;
+    field public static final String DATA_NETWORK_TYPE = "data_network_type";
     field public static final String IS_MANUAL_NETWORK_SELECTION = "is_manual_network_selection";
     field public static final String VOICE_OPERATOR_NUMERIC = "voice_operator_numeric";
     field public static final String VOICE_REG_STATE = "voice_reg_state";
diff --git a/core/java/android/provider/Telephony.java b/core/java/android/provider/Telephony.java
index 753abea..9b65a7c 100644
--- a/core/java/android/provider/Telephony.java
+++ b/core/java/android/provider/Telephony.java
@@ -4572,6 +4572,13 @@
          * This is the same as {@link ServiceState#getIsManualSelection()}.
          */
         public static final String IS_MANUAL_NETWORK_SELECTION = "is_manual_network_selection";
+
+        /**
+         * The current data network type.
+         * <p>
+         * This is the same as {@link TelephonyManager#getDataNetworkType()}.
+         */
+        public static final String DATA_NETWORK_TYPE = "data_network_type";
     }
 
     /**