diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 114f10daf495e..1f336f776c40f 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -2502,4 +2502,7 @@ interface ITelephony {
      */
     CellIdentity getLastKnownCellIdentity(int subId, String callingPackage,
             String callingFeatureId);
+
+    /** Check if telephony new data stack is enabled. */
+    boolean isUsingNewDataStack();
 }