diff --git a/api/current.txt b/api/current.txt
index 6c7f28c45d542..b6460d8c9ba84 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -39096,7 +39096,7 @@ package android.provider {
     field @Deprecated public static final String BEARER = "bearer";
     field public static final String CARRIER_ENABLED = "carrier_enabled";
     field public static final String CARRIER_ID = "carrier_id";
-    field public static final android.net.Uri CONTENT_URI;
+    field @NonNull public static final android.net.Uri CONTENT_URI;
     field public static final String CURRENT = "current";
     field public static final String DEFAULT_SORT_ORDER = "name ASC";
     field @Deprecated public static final String MCC = "mcc";
@@ -39115,7 +39115,7 @@ package android.provider {
     field public static final String PROXY = "proxy";
     field public static final String ROAMING_PROTOCOL = "roaming_protocol";
     field public static final String SERVER = "server";
-    field public static final android.net.Uri SIM_APN_URI;
+    field @NonNull public static final android.net.Uri SIM_APN_URI;
     field public static final String SUBSCRIPTION_ID = "sub_id";
     field public static final String TYPE = "type";
     field public static final String USER = "user";
diff --git a/telephony/java/android/provider/Telephony.java b/telephony/java/android/provider/Telephony.java
index 2d8a8cbae59f3..037e47520c94d 100644
--- a/telephony/java/android/provider/Telephony.java
+++ b/telephony/java/android/provider/Telephony.java
@@ -3394,6 +3394,7 @@ public final class Telephony {
          * {@link SubscriptionManager#getDefaultSubscriptionId()}. To specify subId for MSIM,
          * use {@link Uri#withAppendedPath(Uri, String)} to append with subscription id.
          */
+        @NonNull
         public static final Uri CONTENT_URI = Uri.parse("content://telephony/carriers");
 
         /**
@@ -3406,6 +3407,7 @@ public final class Telephony {
          * {@link SubscriptionManager#getDefaultSubscriptionId()}. To specify subId for MSIM,
          * use {@link Uri#withAppendedPath(Uri, String)} to append with subscription id.
          */
+        @NonNull
         public static final Uri SIM_APN_URI = Uri.parse(
                 "content://telephony/carriers/sim_apn_list");