diff --git a/core/java/android/net/IpPrefix.java b/core/java/android/net/IpPrefix.java
index 4631c56..b996cda 100644
--- a/core/java/android/net/IpPrefix.java
+++ b/core/java/android/net/IpPrefix.java
@@ -16,6 +16,8 @@
 
 package android.net;
 
+import android.annotation.SystemApi;
+import android.annotation.TestApi;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Pair;
@@ -83,6 +85,8 @@
      * @param prefixLength the prefix length. Must be &gt;= 0 and &lt;= (32 or 128) (IPv4 or IPv6).
      * @hide
      */
+    @SystemApi
+    @TestApi
     public IpPrefix(InetAddress address, int prefixLength) {
         // We don't reuse the (byte[], int) constructor because it calls clone() on the byte array,
         // which is unnecessary because getAddress() already returns a clone.
diff --git a/core/java/android/net/LinkAddress.java b/core/java/android/net/LinkAddress.java
index a536d08..fbd602c 100644
--- a/core/java/android/net/LinkAddress.java
+++ b/core/java/android/net/LinkAddress.java
@@ -162,6 +162,8 @@
      *              {@link OsConstants#RT_SCOPE_LINK} or {@link OsConstants#RT_SCOPE_SITE}).
      * @hide
      */
+    @SystemApi
+    @TestApi
     public LinkAddress(InetAddress address, int prefixLength, int flags, int scope) {
         init(address, prefixLength, flags, scope);
     }
diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 21b6a8e..6628701 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -174,7 +174,8 @@
     /**
      * @hide
      */
-    @UnsupportedAppUsage
+    @SystemApi
+    @TestApi
     public LinkProperties(LinkProperties source) {
         if (source != null) {
             mIfaceName = source.mIfaceName;
@@ -576,6 +577,8 @@
      * @param addresses The {@link Collection} of PCSCF servers to set in this object.
      * @hide
      */
+    @SystemApi
+    @TestApi
     public void setPcscfServers(Collection<InetAddress> pcscfServers) {
         mPcscfs.clear();
         for (InetAddress pcscfServer: pcscfServers) {
@@ -590,6 +593,8 @@
      *         this link.
      * @hide
      */
+    @SystemApi
+    @TestApi
     public List<InetAddress> getPcscfServers() {
         return Collections.unmodifiableList(mPcscfs);
     }
@@ -781,6 +786,8 @@
      * @return the NAT64 prefix.
      * @hide
      */
+    @SystemApi
+    @TestApi
     public @Nullable IpPrefix getNat64Prefix() {
         return mNat64Prefix;
     }
@@ -794,6 +801,8 @@
      * @param prefix the NAT64 prefix.
      * @hide
      */
+    @SystemApi
+    @TestApi
     public void setNat64Prefix(IpPrefix prefix) {
         if (prefix != null && prefix.getPrefixLength() != 96) {
             throw new IllegalArgumentException("Only 96-bit prefixes are supported: " + prefix);
diff --git a/core/java/android/net/RouteInfo.java b/core/java/android/net/RouteInfo.java
index 6bf2c67..5c0f758 100644
--- a/core/java/android/net/RouteInfo.java
+++ b/core/java/android/net/RouteInfo.java
@@ -110,6 +110,8 @@
      *
      * @hide
      */
+    @SystemApi
+    @TestApi
     public RouteInfo(IpPrefix destination, InetAddress gateway, String iface, int type) {
         switch (type) {
             case RTN_UNICAST: