diff --git a/api/system-current.txt b/api/system-current.txt
index f54a874d4040f..778aed35d47cc 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -7926,7 +7926,7 @@ package android.telephony {
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean enableDataConnectivity();
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean enableModemForSlot(int, boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void enableVideoCalling(boolean);
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getAidForAppType(int);
+    method @Nullable @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getAidForAppType(int);
     method @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public java.util.List<android.service.carrier.CarrierIdentifier> getAllowedCarriers(int);
     method public java.util.List<java.lang.String> getCarrierPackageNamesForIntent(android.content.Intent);
     method public java.util.List<java.lang.String> getCarrierPackageNamesForIntentAndPhone(android.content.Intent, int);
@@ -7942,7 +7942,7 @@ package android.telephony {
     method @Deprecated public boolean getDataEnabled();
     method @Deprecated public boolean getDataEnabled(int);
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean getEmergencyCallbackMode();
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getIsimDomain();
+    method @Nullable @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getIsimDomain();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getIsimIst();
     method @NonNull @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public java.util.List<android.util.Pair<java.lang.Integer,java.lang.Integer>> getLogicalToPhysicalSlotMapping();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public long getPreferredNetworkTypeBitmap();
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 31d8ddbbd35ff..a948577321553 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -4495,6 +4495,7 @@ public class TelephonyManager {
      * {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
      * @hide
      */
+    @Nullable
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public String getIsimDomain() {
@@ -9071,6 +9072,7 @@ public class TelephonyManager {
      * @return Application ID for specified app type or {@code null} if no uicc or error.
      * @hide
      */
+    @Nullable
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public String getAidForAppType(@UiccAppType int appType) {