diff --git a/src/Qiniu/Storage/FormUploader.php b/src/Qiniu/Storage/FormUploader.php
index e3a314c1..2e1cae82 100644
--- a/src/Qiniu/Storage/FormUploader.php
+++ b/src/Qiniu/Storage/FormUploader.php
@@ -49,7 +49,11 @@ public static function put(
             }
         }
 
-        $upHost = $config->zone->getUpHostByToken($upToken);
+        list($upHost, $err) = $config->zone->getUpHostByToken($upToken);
+        if ($err != null) {
+            return array(null, $err);
+        }
+
         $response = Client::multipartPost($upHost, $fields, 'file', $fname, $data, $mime);
         if (!$response->ok()) {
             return array(null, new Error($upHost, $response));
@@ -99,7 +103,11 @@ public static function putFile(
         $fields['key'] = $key;
         $headers =array('Content-Type' => 'multipart/form-data');
 
-        $upHost = $config->zone->getUpHostByToken($upToken);
+        list($upHost, $err) = $config->zone->getUpHostByToken($upToken);
+        if ($err != null) {
+            return array(null, $err);
+        }
+        
         $response = client::post($upHost, $fields, $headers);
         if (!$response->ok()) {
             return array(null, new Error($upHost, $response));
diff --git a/src/Qiniu/Storage/ResumeUploader.php b/src/Qiniu/Storage/ResumeUploader.php
index 34160d0e..382f21c6 100644
--- a/src/Qiniu/Storage/ResumeUploader.php
+++ b/src/Qiniu/Storage/ResumeUploader.php
@@ -54,7 +54,12 @@ public function __construct(
         $this->mime = $mime;
         $this->contexts = array();
         $this->config = $config;
-        $this->host = $config->zone->getUpHostByToken($upToken);
+
+        list($upHost, $err) = $config->zone->getUpHostByToken($upToken);
+        if ($err != null) {
+            throw new \Exception($err, 1);
+        }
+        $this->host = $upHost;
     }
 
     /**
@@ -76,7 +81,11 @@ public function upload()
                 $ret = $response->json();
             }
             if ($response->statusCode < 0) {
-                $this->host = $this->config->zone->getBackupUpHostByToken($this->upToken);
+                list($bakHost, $err) = $this->config->zone->getBackupUpHostByToken($this->upToken);
+                if ($err != null) {
+                    return array(null, $err);
+                }
+                $this->host = $bakHost;
             }
             if ($response->needRetry() || !isset($ret['crc32']) || $crc != $ret['crc32']) {
                 $response = $this->makeBlock($data, $blockSize);
diff --git a/src/Qiniu/Zone.php b/src/Qiniu/Zone.php
index c9829c96..3f58430b 100644
--- a/src/Qiniu/Zone.php
+++ b/src/Qiniu/Zone.php
@@ -28,17 +28,17 @@ public function __construct($scheme = null)
     public function getUpHostByToken($uptoken)
     {
         list($ak, $bucket) = $this->unmarshalUpToken($uptoken);
-        list($upHosts,) = $this->getUpHosts($ak, $bucket);
-        return $upHosts[0];
+        list($upHosts, $err) = $this->getUpHosts($ak, $bucket);
+        return array($upHosts[0], $err);
     }
 
     public function getBackupUpHostByToken($uptoken)
     {
         list($ak, $bucket) = $this->unmarshalUpToken($uptoken);
-        list($upHosts,) = $this->getUpHosts($ak, $bucket);
+        list($upHosts, $err) = $this->getUpHosts($ak, $bucket);
 
         $upHost = isset($upHosts[1]) ? $upHosts[1] : $upHosts[0];
-        return $upHost;
+        return array($upHost, $err);
     }
 
     public function getIoHost($ak, $bucket)
diff --git a/tests/Qiniu/Tests/ZoneTest.php b/tests/Qiniu/Tests/ZoneTest.php
index d690c893..b633b9a3 100644
--- a/tests/Qiniu/Tests/ZoneTest.php
+++ b/tests/Qiniu/Tests/ZoneTest.php
@@ -12,6 +12,7 @@ class ZoneTest extends \PHPUnit_Framework_TestCase
 
     protected $bucketName;
     protected $bucketNameBC;
+    protected $bucketNameNA;
 
 
     protected function setUp()
@@ -22,6 +23,9 @@ protected function setUp()
         global $bucketNameBC;
         $this->bucketNameBC = $bucketNameBC;
 
+        global $bucketNameNA;
+        $this->bucketNameNA = $bucketNameNA;
+
         global $accessKey;
         $this->ak = $accessKey;
 
@@ -32,23 +36,37 @@ protected function setUp()
     public function testUpHosts()
     {
 
+        // test nb http
         list($upHosts, $err) = $this->zone->getUpHosts($this->ak, $this->bucketName);
         $this->assertNull($err);
         $this->assertEquals('http://up.qiniu.com', $upHosts[0]);
         $this->assertEquals('http://upload.qiniu.com', $upHosts[1]);
 
+        // test bc http
         list($upHosts, $err) = $this->zone->getUpHosts($this->ak, $this->bucketNameBC);
         $this->assertNull($err);
         $this->assertEquals('http://up-z1.qiniu.com', $upHosts[0]);
         $this->assertEquals('http://upload-z1.qiniu.com', $upHosts[1]);
 
+        // test na http
+        list($upHosts, $err) = $this->zone->getUpHosts($this->ak, $this->bucketNameNA);
+        $this->assertNull($err);
+        $this->assertEquals('http://up-na0.qiniu.com', $upHosts[0]);
+
+        // test nb https
         list($upHosts, $err) = $this->zoneHttps->getUpHosts($this->ak, $this->bucketName);
         $this->assertNull($err);
         $this->assertEquals('https://up.qbox.me', $upHosts[0]);
 
+        // test bc https
         list($upHosts, $err) = $this->zoneHttps->getUpHosts($this->ak, $this->bucketNameBC);
         $this->assertNull($err);
         $this->assertEquals('https://up-z1.qbox.me', $upHosts[0]);
+
+        // test na https
+        list($upHosts, $err) = $this->zoneHttps->getUpHosts($this->ak, $this->bucketNameNA);
+        $this->assertNull($err);
+        $this->assertEquals('https://up-na0.qbox.me', $upHosts[0]);
     }
 
     public function testUpHostByToken()
@@ -58,36 +76,52 @@ public function testUpHostByToken()
         3RzIjpbImh0dHA6XC9cL3VwLXoxLnFpbml1LmNvbSIsImh0dHA6XC9cL3VwbG9hZC16MS5xaW5p
         dS5jb20iLCItSCB1cC16MS5xaW5pdS5jb20gaHR0cDpcL1wvMTA2LjM4LjIyNy4yNyJdfQ==';
 
-        $upHost = $this->zone->getUpHostByToken($uptoken_bc);
+        list($upHost, $err) = $this->zone->getUpHostByToken($uptoken_bc);
         $this->assertEquals('http://up-z1.qiniu.com', $upHost);
+        $this->assertEquals(null, $err);
 
-        $upHostBackup = $this->zone->getBackupUpHostByToken($uptoken_bc);
+        list($upHostBackup, $err) = $this->zone->getBackupUpHostByToken($uptoken_bc);
         $this->assertEquals('http://upload-z1.qiniu.com', $upHostBackup);
+        $this->assertEquals(null, $err);
 
 
         $uptoken_bc_https = 'QWYn5TFQsLLU1pL5MFEmX3s5DmHdUThav9WyOWOm:7I47O-vFcN5TKO
         6D7cobHPVkyIA=:eyJzY29wZSI6InBocHNkay1iYyIsImRlYWRsaW5lIjoxNDcwNzIyNzQ1LCJ1c
         Ehvc3RzIjpbImh0dHBzOlwvXC91cC16MS5xYm94Lm1lIl19';
-        $upHost = $this->zoneHttps->getUpHostByToken($uptoken_bc_https);
+        list($upHost, $err) = $this->zoneHttps->getUpHostByToken($uptoken_bc_https);
         $this->assertEquals('https://up-z1.qbox.me', $upHost);
+        $this->assertEquals(null, $err);
 
-        $upHostBackup = $this->zoneHttps->getBackupUpHostByToken($uptoken_bc_https);
+        list($upHostBackup, $err) = $this->zoneHttps->getBackupUpHostByToken($uptoken_bc_https);
         $this->assertEquals('https://up-z1.qbox.me', $upHostBackup);
+        $this->assertEquals(null, $err);
     }
 
     public function testIoHosts()
     {
 
+        // test nb http
         $ioHost = $this->zone->getIoHost($this->ak, $this->bucketName);
         $this->assertEquals('http://iovip.qbox.me', $ioHost);
 
+        // test bc http
         $ioHost = $this->zone->getIoHost($this->ak, $this->bucketNameBC);
         $this->assertEquals('http://iovip-z1.qbox.me', $ioHost);
 
+        // test na http
+        $ioHost = $this->zone->getIoHost($this->ak, $this->bucketNameNA);
+        $this->assertEquals('http://iovip-na0.qbox.me', $ioHost);
+
+        // test nb https
         $ioHost = $this->zoneHttps->getIoHost($this->ak, $this->bucketName);
         $this->assertEquals('https://iovip.qbox.me', $ioHost);
 
+        // test bc https
         $ioHost = $this->zoneHttps->getIoHost($this->ak, $this->bucketNameBC);
         $this->assertEquals('https://iovip-z1.qbox.me', $ioHost);
+
+        // test na https
+        $ioHost = $this->zoneHttps->getIoHost($this->ak, $this->bucketNameNA);
+        $this->assertEquals('https://iovip-na0.qbox.me', $ioHost);
     }
 }
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index bed9e873..57a53d13 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -10,6 +10,7 @@
 $bucketName = 'phpsdk';
 $key = 'php-logo.png';
 $bucketNameBC = 'phpsdk-bc';
+$bucketNameNA = 'phpsdk-na';
 
 $dummyAccessKey = 'abcdefghklmnopq';
 $dummySecretKey = '1234567890';