diff --git a/framework/src/android/net/ConnectivityAnnotations.java b/framework/src/android/net/ConnectivityAnnotations.java
new file mode 100644
index 0000000..eb1faa0
--- /dev/null
+++ b/framework/src/android/net/ConnectivityAnnotations.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net;
+
+import android.annotation.IntDef;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * Type annotations for constants used in the connectivity API surface.
+ *
+ * The annotations are maintained in a separate class so that it can be built as
+ * a separate library that other modules can build against, as Typedef should not
+ * be exposed as SystemApi.
+ *
+ * @hide
+ */
+public final class ConnectivityAnnotations {
+    private ConnectivityAnnotations() {}
+
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(flag = true, value = {
+            ConnectivityManager.MULTIPATH_PREFERENCE_HANDOVER,
+            ConnectivityManager.MULTIPATH_PREFERENCE_RELIABILITY,
+            ConnectivityManager.MULTIPATH_PREFERENCE_PERFORMANCE,
+    })
+    public @interface MultipathPreference {}
+
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(flag = false, value = {
+            ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED,
+            ConnectivityManager.RESTRICT_BACKGROUND_STATUS_WHITELISTED,
+            ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED,
+    })
+    public @interface RestrictBackgroundStatus {}
+}
diff --git a/framework/src/android/net/ConnectivityManager.java b/framework/src/android/net/ConnectivityManager.java
index df81603..5a53af4 100644
--- a/framework/src/android/net/ConnectivityManager.java
+++ b/framework/src/android/net/ConnectivityManager.java
@@ -40,6 +40,8 @@
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.net.ConnectivityAnnotations.MultipathPreference;
+import android.net.ConnectivityAnnotations.RestrictBackgroundStatus;
 import android.net.ConnectivityDiagnosticsManager.DataStallReport.DetectionMethod;
 import android.net.IpSecManager.UdpEncapsulationSocket;
 import android.net.SocketKeepalive.Callback;
@@ -4799,16 +4801,6 @@
             MULTIPATH_PREFERENCE_RELIABILITY |
             MULTIPATH_PREFERENCE_PERFORMANCE;
 
-    /** @hide */
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(flag = true, value = {
-            MULTIPATH_PREFERENCE_HANDOVER,
-            MULTIPATH_PREFERENCE_RELIABILITY,
-            MULTIPATH_PREFERENCE_PERFORMANCE,
-    })
-    public @interface MultipathPreference {
-    }
-
     /**
      * Provides a hint to the calling application on whether it is desirable to use the
      * multinetwork APIs (e.g., {@link Network#openConnection}, {@link Network#bindSocket}, etc.)
@@ -5030,16 +5022,6 @@
     public static final String ACTION_RESTRICT_BACKGROUND_CHANGED =
             "android.net.conn.RESTRICT_BACKGROUND_CHANGED";
 
-    /** @hide */
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(flag = false, value = {
-            RESTRICT_BACKGROUND_STATUS_DISABLED,
-            RESTRICT_BACKGROUND_STATUS_WHITELISTED,
-            RESTRICT_BACKGROUND_STATUS_ENABLED,
-    })
-    public @interface RestrictBackgroundStatus {
-    }
-
     /**
      * Determines if the calling application is subject to metered network restrictions while
      * running on background.
diff --git a/framework/src/android/net/ConnectivitySettingsManager.java b/framework/src/android/net/ConnectivitySettingsManager.java
index 07754e4..bb2e62e 100644
--- a/framework/src/android/net/ConnectivitySettingsManager.java
+++ b/framework/src/android/net/ConnectivitySettingsManager.java
@@ -27,7 +27,7 @@
 import android.annotation.SystemApi;
 import android.content.ContentResolver;
 import android.content.Context;
-import android.net.ConnectivityManager.MultipathPreference;
+import android.net.ConnectivityAnnotations.MultipathPreference;
 import android.os.Process;
 import android.os.UserHandle;
 import android.provider.Settings;