diff --git a/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainActivity.kt b/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainActivity.kt
index d2022aa..0399e7d 100644
--- a/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainActivity.kt
+++ b/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainActivity.kt
@@ -9,6 +9,7 @@ import android.os.Bundle
 import android.os.IBinder
 import android.view.View
 import android.widget.Button
+import android.widget.TextView
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.foundation.layout.fillMaxSize
@@ -48,7 +49,9 @@ class MainActivity : ComponentActivity() {
 
         val start = findViewById<Button>(R.id.start)
         start.setOnClickListener(View.OnClickListener {
-            mService?.startServer()
+            val serverPort = mService?.startServer()
+            val portTextView = findViewById<TextView>(R.id.port)
+            portTextView.text = "Listening on port: " + serverPort.toString();
         })
 
         val stop = findViewById<Button>(R.id.stop)
diff --git a/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainService.kt b/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainService.kt
index 7030caa..5dd1d48 100644
--- a/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainService.kt
+++ b/ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainService.kt
@@ -16,6 +16,7 @@ import android.os.Looper
 import android.os.Message
 import android.os.Process
 import android.util.Log
+import android.widget.Button
 import android.widget.Toast
 import androidx.core.app.NotificationCompat
 import androidx.core.app.ServiceCompat
@@ -240,7 +241,7 @@ class MainService : Service() {
         return port
     }
 
-    fun startServer() {
+    fun startServer(): Int {
         val hostAddress = getIpAddress()
         if (!isPortAvailable(port)) {
             port = findPort()
@@ -252,6 +253,8 @@ class MainService : Service() {
                 "other/tensor,format=static,dimension=(string)1001:1,type=uint8,framerate=0/1 ! tensor_query_serversink async=false"
         tensorQueryServer = Pipeline(desc, null)
         tensorQueryServer.start()
+
+        return port
     }
 
     fun stopServer() {
diff --git a/ml_inference_offloading/src/main/res/layout/activity_main.xml b/ml_inference_offloading/src/main/res/layout/activity_main.xml
index f05a154..423eb47 100644
--- a/ml_inference_offloading/src/main/res/layout/activity_main.xml
+++ b/ml_inference_offloading/src/main/res/layout/activity_main.xml
@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    android:orientation="vertical">
     <Button
         android:id="@+id/start"
         android:layout_width="wrap_content"
@@ -12,4 +13,8 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Stop" />
+    <TextView
+        android:id="@+id/port"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
 </LinearLayout>