diff --git a/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/ListCurrentAllActivityTypeSubscriptionsServlet.java b/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/ListCurrentAllActivityTypeSubscriptionsServlet.java
new file mode 100644
index 0000000..588df8d
--- /dev/null
+++ b/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/ListCurrentAllActivityTypeSubscriptionsServlet.java
@@ -0,0 +1,18 @@
+package com.mizo0203.twitter.account.activity.api.beta.samples;
+
+import com.mizo0203.twitter.account.activity.api.beta.samples.domain.UseCase;
+
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+public class ListCurrentAllActivityTypeSubscriptionsServlet extends HttpServlet {
+
+  @Override
+  public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    try (UseCase useCase = new UseCase()) {
+      useCase.listCurrentAllActivityTypeSubscriptions();
+    }
+  }
+}
diff --git a/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/domain/UseCase.java b/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/domain/UseCase.java
index 06a7bba..d80b8d4 100644
--- a/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/domain/UseCase.java
+++ b/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/domain/UseCase.java
@@ -61,6 +61,18 @@ public void isSubscribed() {
     mTwitterClient.isSubscribed();
   }
 
+  /**
+   * Returns a list of the current All Activity type subscriptions. Note that the /list endpoint
+   * requires App-only Oauth, so requests should be made using a bearer token instead of app-user
+   * auth.
+   *
+   * <p>現在のAll Activity型サブスクリプションのリストを返します。 / listエンドポイントではApp-only Oauthが必要なので、app-user
+   * authの代わりにベアラトークンを使用してリクエストする必要があります。
+   */
+  public void listCurrentAllActivityTypeSubscriptions() {
+    mTwitterClient.listCurrentAllActivityTypeSubscriptions();
+  }
+
   /**
    * Deactivates subscription(s) for the provided user context and app for all activities. After
    * deactivation, all All events for the requesting user will no longer be sent to the webhook URL.
diff --git a/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/repo/TwitterClient.java b/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/repo/TwitterClient.java
index 5050019..fcd1944 100644
--- a/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/repo/TwitterClient.java
+++ b/src/main/java/com/mizo0203/twitter/account/activity/api/beta/samples/repo/TwitterClient.java
@@ -21,6 +21,8 @@ public class TwitterClient {
       "https://api.twitter.com/1.1/account_activity/all/env-beta/subscriptions.json";
   private static final String TWITTER_API_ACCOUNT_ACTIVITY_COUNT_URL_STR =
       "https://api.twitter.com/1.1/account_activity/all/count.json";
+  private static final String TWITTER_API_ACCOUNT_ACTIVITY_LIST_SUBSCRIPTIONS_URL_STR =
+      "https://api.twitter.com/1.1/account_activity/all/:env_name/subscriptions/list.json";
   private final Twitter mTwitter;
   private final Twitter4JUtil mTwitter4JUtil;
 
@@ -118,6 +120,29 @@ public void isSubscribed() {
     }
   }
 
+  /**
+   * Returns a list of the current All Activity type subscriptions. Note that the /list endpoint
+   * requires App-only Oauth, so requests should be made using a bearer token instead of app-user
+   * auth.
+   *
+   * <p>現在のAll Activity型サブスクリプションのリストを返します。 / listエンドポイントではApp-only Oauthが必要なので、app-user
+   * authの代わりにベアラトークンを使用してリクエストする必要があります。
+   */
+  public void listCurrentAllActivityTypeSubscriptions() {
+    try {
+      HttpResponse ret =
+          mTwitter4JUtil
+              .getApplicationOnlyAuthentication()
+              .get(TWITTER_API_ACCOUNT_ACTIVITY_LIST_SUBSCRIPTIONS_URL_STR);
+      LOG.log(
+          Level.INFO, "listCurrentAllActivityTypeSubscriptions ret.toString(): " + ret.toString());
+      LOG.log(
+          Level.INFO, "listCurrentAllActivityTypeSubscriptions ret.asString(): " + ret.asString());
+    } catch (TwitterException e) {
+      e.printStackTrace();
+    }
+  }
+
   /**
    * Deactivates subscription(s) for the provided user context and app for all activities. After
    * deactivation, all All events for the requesting user will no longer be sent to the webhook URL.
diff --git a/src/main/webapp/WEB-INF/web.xml b/src/main/webapp/WEB-INF/web.xml
index 5ff33c9..76f1706 100644
--- a/src/main/webapp/WEB-INF/web.xml
+++ b/src/main/webapp/WEB-INF/web.xml
@@ -43,6 +43,16 @@
         <servlet-name>returns_all_urls</servlet-name>
         <url-pattern>/admin/returns_all_urls</url-pattern>
     </servlet-mapping>
+    <servlet>
+        <servlet-name>list_current_all_activity_type_subscriptions</servlet-name>
+        <servlet-class>
+            com.mizo0203.twitter.account.activity.api.beta.samples.ListCurrentAllActivityTypeSubscriptionsServlet
+        </servlet-class>
+    </servlet>
+    <servlet-mapping>
+        <servlet-name>list_current_all_activity_type_subscriptions</servlet-name>
+        <url-pattern>/admin/list_current_all_activity_type_subscriptions</url-pattern>
+    </servlet-mapping>
     <servlet>
         <servlet-name>deactivates_subscriptions</servlet-name>
         <servlet-class>com.mizo0203.twitter.account.activity.api.beta.samples.DeactivatesSubscriptionsServlet
diff --git a/src/main/webapp/index.html b/src/main/webapp/index.html
index 37ff5e2..a623e97 100644
--- a/src/main/webapp/index.html
+++ b/src/main/webapp/index.html
@@ -34,6 +34,11 @@ <h1>Hello App Engine!</h1>
     <tr>
         <td><a href="admin/is_subscribed">is_subscribed</a></td>
     </tr>
+    <tr>
+        <td>
+            <a href="admin/list_current_all_activity_type_subscriptions">list_current_all_activity_type_subscriptions</a>
+        </td>
+    </tr>
     <tr>
         <td><a href="admin/deactivates_subscriptions">deactivates_subscriptions</a></td>
     </tr>