diff --git a/api/current.txt b/api/current.txt
index e7c25e469adfb..7b183a52478fb 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -29383,6 +29383,22 @@ package android.provider {
     field public static final java.lang.String _ID = "_id";
   }
 
+  public class BlockedNumberContract {
+    method public static boolean isBlocked(android.content.Context, java.lang.String);
+    field public static final java.lang.String AUTHORITY = "com.android.blockednumber";
+    field public static final android.net.Uri AUTHORITY_URI;
+  }
+
+  public static class BlockedNumberContract.BlockedNumbers {
+    field public static final java.lang.String COLUMN_E164_NUMBER = "e164_number";
+    field public static final java.lang.String COLUMN_ID = "_id";
+    field public static final java.lang.String COLUMN_ORIGINAL_NUMBER = "original_number";
+    field public static final java.lang.String COLUMN_STRIPPED_NUMBER = "stripped_number";
+    field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/blocked_number";
+    field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/blocked_numbers";
+    field public static final android.net.Uri CONTENT_URI;
+  }
+
   public class Browser {
     ctor public Browser();
     method public static final void sendString(android.content.Context, java.lang.String);
diff --git a/api/system-current.txt b/api/system-current.txt
index 8d4caefa3c742..4d1776d289954 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -31388,6 +31388,22 @@ package android.provider {
     field public static final java.lang.String _ID = "_id";
   }
 
+  public class BlockedNumberContract {
+    method public static boolean isBlocked(android.content.Context, java.lang.String);
+    field public static final java.lang.String AUTHORITY = "com.android.blockednumber";
+    field public static final android.net.Uri AUTHORITY_URI;
+  }
+
+  public static class BlockedNumberContract.BlockedNumbers {
+    field public static final java.lang.String COLUMN_E164_NUMBER = "e164_number";
+    field public static final java.lang.String COLUMN_ID = "_id";
+    field public static final java.lang.String COLUMN_ORIGINAL_NUMBER = "original_number";
+    field public static final java.lang.String COLUMN_STRIPPED_NUMBER = "stripped_number";
+    field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/blocked_number";
+    field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/blocked_numbers";
+    field public static final android.net.Uri CONTENT_URI;
+  }
+
   public class Browser {
     ctor public Browser();
     method public static final void sendString(android.content.Context, java.lang.String);
diff --git a/api/test-current.txt b/api/test-current.txt
index 5f1f63f37745c..c81bb08311018 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -29395,6 +29395,22 @@ package android.provider {
     field public static final java.lang.String _ID = "_id";
   }
 
+  public class BlockedNumberContract {
+    method public static boolean isBlocked(android.content.Context, java.lang.String);
+    field public static final java.lang.String AUTHORITY = "com.android.blockednumber";
+    field public static final android.net.Uri AUTHORITY_URI;
+  }
+
+  public static class BlockedNumberContract.BlockedNumbers {
+    field public static final java.lang.String COLUMN_E164_NUMBER = "e164_number";
+    field public static final java.lang.String COLUMN_ID = "_id";
+    field public static final java.lang.String COLUMN_ORIGINAL_NUMBER = "original_number";
+    field public static final java.lang.String COLUMN_STRIPPED_NUMBER = "stripped_number";
+    field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/blocked_number";
+    field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/blocked_numbers";
+    field public static final android.net.Uri CONTENT_URI;
+  }
+
   public class Browser {
     ctor public Browser();
     method public static final void sendString(android.content.Context, java.lang.String);
diff --git a/core/java/android/provider/BlockedNumberContract.java b/core/java/android/provider/BlockedNumberContract.java
new file mode 100644
index 0000000000000..03e0e11f4f746
--- /dev/null
+++ b/core/java/android/provider/BlockedNumberContract.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2016 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.provider;
+
+import android.content.Context;
+import android.net.Uri;
+import android.os.Bundle;
+
+/**
+ * Constants and methods to access blocked phone numbers for incoming calls and texts.
+ *
+ * TODO javadoc
+ * - Proper javadoc tagging.
+ * - Code sample?
+ * - Describe who can access it.
+ */
+public class BlockedNumberContract {
+    private BlockedNumberContract() {
+    }
+
+    /** The authority for the contacts provider */
+    public static final String AUTHORITY = "com.android.blockednumber";
+
+    /** A content:// style uri to the authority for the contacts provider */
+    public static final Uri AUTHORITY_URI = Uri.parse("content://" + AUTHORITY);
+
+    /**
+     * TODO javadoc
+     *
+     * Constants to interact with the blocked phone number list.
+     */
+    public static class BlockedNumbers {
+        private BlockedNumbers() {
+        }
+
+        /**
+         * TODO javadoc
+         *
+         * Content URI for the blocked numbers.
+         *
+         * Supported operations
+         * blocked
+         * - query
+         * - delete
+         * - insert
+         *
+         * blocked/ID
+         * - query (selection is not supported)
+         * - delete (selection is not supported)
+         */
+        public static final Uri CONTENT_URI = Uri.withAppendedPath(AUTHORITY_URI,
+                "blocked");
+
+        /**
+         * The MIME type of {@link #CONTENT_URI} itself providing a directory of blocked phone
+         * numbers.
+         */
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/blocked_numbers";
+
+        /**
+         * The MIME type of a blocked phone number under {@link #CONTENT_URI}.
+         */
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/blocked_number";
+
+        /**
+         * Auto-generated ID field which monotonically increases.
+         * <p>TYPE: long</p>
+         */
+        public static final String COLUMN_ID = "_id";
+
+        /**
+         * Phone number to block.
+         * <p>Must be specified in {@code insert}.
+         * <p>TYPE: String</p>
+         */
+        public static final String COLUMN_ORIGINAL_NUMBER = "original_number";
+
+        /**
+         * Phone number to block.  The system generates it from {@link #COLUMN_ORIGINAL_NUMBER}
+         * by removing all formatting characters.
+         * <p>Must NOT be specified in {@code insert}.
+         * <p>TYPE: String</p>
+         */
+        public static final String COLUMN_STRIPPED_NUMBER = "stripped_number";
+
+        /**
+         * Phone number to block.  The system generates it from {@link #COLUMN_ORIGINAL_NUMBER}
+         * by removing all formatting characters.
+         * <p>Optional in {@code insert}.  When not specified, the system tries to generate it
+         * assuming the current country. (Which will still be null if the number is not valid.)
+         * <p>TYPE: String</p>
+         */
+        public static final String COLUMN_E164_NUMBER = "e164_number";
+
+        /** @hide */
+        public static final String COLUMN_INDEX_STRIPPED = "index_stripped";
+
+        /** @hide */
+        public static final String COLUMN_INDEX_E164 = "index_e164";
+    }
+
+    /** @hide */
+    public static final String METHOD_IS_BLOCKED = "is_blocked";
+
+    /** @hide */
+    public static final String RES_NUMBER_IS_BLOCKED = "blocked";
+
+    /**
+     * Returns whether a given number is in the blocked list.
+     *
+     * TODO This should probably catch IllegalArgumentException to guard against the case where
+     * the provider is encrypted or the user is not running.
+     * (See addEntryAndRemoveExpiredEntries() in
+     * http://ag/#/c/844426/3/core/java/android/provider/CallLog.java)
+     */
+    public static boolean isBlocked(Context context, String phoneNumber) {
+        final Bundle res = context.getContentResolver().call(AUTHORITY_URI,
+                METHOD_IS_BLOCKED, phoneNumber, null);
+        return res != null && res.getBoolean(RES_NUMBER_IS_BLOCKED, false);
+    }
+}