diff --git a/api/current.txt b/api/current.txt
index e77d1f7cfd260..574854b84fa84 100755
--- a/api/current.txt
+++ b/api/current.txt
@@ -37366,6 +37366,7 @@ package android.provider {
     field public static final String CONTENT_ID = "cid";
     field public static final String CONTENT_LOCATION = "cl";
     field public static final String CONTENT_TYPE = "ct";
+    field public static final android.net.Uri CONTENT_URI;
     field public static final String CT_START = "ctt_s";
     field public static final String CT_TYPE = "ctt_t";
     field public static final String FILENAME = "fn";
diff --git a/telephony/java/android/provider/Telephony.java b/telephony/java/android/provider/Telephony.java
index 51532bc8ca5ca..fb8f3e78ff842 100644
--- a/telephony/java/android/provider/Telephony.java
+++ b/telephony/java/android/provider/Telephony.java
@@ -2311,6 +2311,9 @@ public final class Telephony {
 
         /**
          * Contains message parts.
+         *
+         * To avoid issues where applications might cache a part ID, the ID of a deleted part must
+         * not be reused to point at a new part.
          */
         public static final class Part implements BaseColumns {
 
@@ -2321,6 +2324,12 @@ public final class Telephony {
             private Part() {
             }
 
+            /**
+             * The {@code content://} style URL for this table. Can be appended with a part ID to
+             * address individual parts.
+             */
+            public static final Uri CONTENT_URI = Uri.withAppendedPath(Mms.CONTENT_URI, "part");
+
             /**
              * The identifier of the message which this part belongs to.
              * <P>Type: INTEGER</P>