diff --git a/src/GeoIp2/Exception/AuthenticationException.php b/src/GeoIp2/Exception/AuthenticationException.php
new file mode 100644
index 0000000..2a8b592
--- /dev/null
+++ b/src/GeoIp2/Exception/AuthenticationException.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace GeoIp2\Exception;
+
+/**
+ * This class represents a generic error.
+ */
+class AuthenticationException extends GeoIp2Exception
+{
+}
diff --git a/src/GeoIp2/Exception/WebServiceException.php b/src/GeoIp2/Exception/InvalidRequestException.php
similarity index 89%
rename from src/GeoIp2/Exception/WebServiceException.php
rename to src/GeoIp2/Exception/InvalidRequestException.php
index c67c842..f027910 100644
--- a/src/GeoIp2/Exception/WebServiceException.php
+++ b/src/GeoIp2/Exception/InvalidRequestException.php
@@ -6,7 +6,7 @@ namespace GeoIp2\Exception;
  * This class represents an error returned by MaxMind's GeoIP2
  * web service.
  */
-class WebServiceException extends HttpException
+class InvalidRequestException extends HttpException
 {
     /**
      * The code returned by the MaxMind web service
diff --git a/src/GeoIp2/Exception/OutOfQueriesException.php b/src/GeoIp2/Exception/OutOfQueriesException.php
new file mode 100644
index 0000000..87a6ade
--- /dev/null
+++ b/src/GeoIp2/Exception/OutOfQueriesException.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace GeoIp2\Exception;
+
+/**
+ * This class represents a generic error.
+ */
+class OutOfQueriesException extends GeoIp2Exception
+{
+}
diff --git a/src/GeoIp2/WebService/Client.php b/src/GeoIp2/WebService/Client.php
index fbb344b..4f11fcc 100644
--- a/src/GeoIp2/WebService/Client.php
+++ b/src/GeoIp2/WebService/Client.php
@@ -4,7 +4,10 @@ namespace GeoIp2\WebService;
 
 use GeoIp2\Exception\GeoIp2Exception;
 use GeoIp2\Exception\HttpException;
-use GeoIp2\Exception\WebServiceException;
+use GeoIp2\Exception\AddressNotFoundException;
+use GeoIp2\Exception\AuthenticationException;
+use GeoIp2\Exception\InvalidRequestException;
+use GeoIp2\Exception\OutOfQueriesException;
 use GeoIp2\Model\City;
 use GeoIp2\Model\CityIspOrg;
 use GeoIp2\Model\Country;
@@ -273,8 +276,7 @@ class Client
                 $uri
             );
         }
-
-        throw new WebServiceException(
+        $this->handleWebServiceError(
             $body['error'],
             $body['code'],
             $status,
@@ -282,6 +284,28 @@ class Client
         );
     }
 
+    private function handleWebServiceError($message, $code, $status, $uri)
+    {
+        switch ($code) {
+            case 'IP_ADDRESS_NOT_FOUND':
+            case 'IP_ADDRESS_RESERVED':
+                throw new AddressNotFoundException($message);
+            case 'AUTHORIZATION_INVALID':
+            case 'LICENSE_KEY_REQUIRED':
+            case 'USER_ID_REQUIRED':
+                throw new AuthenticationException($message);
+            case 'OUT_OF_QUERIES':
+                throw new OutOfQueriesException($message);
+            default:
+                throw new InvalidRequestException(
+                    $message,
+                    $code,
+                    $status,
+                    $uri
+                );
+        }
+    }
+
     private function handle5xx($response, $uri)
     {
         $status = $response->getStatusCode();
diff --git a/tests/GeoIp2/Test/WebService/ClientTest.php b/tests/GeoIp2/Test/WebService/ClientTest.php
index f8d9e96..e71cae2 100644
--- a/tests/GeoIp2/Test/WebService/ClientTest.php
+++ b/tests/GeoIp2/Test/WebService/ClientTest.php
@@ -82,6 +82,54 @@ class ClientTest extends \PHPUnit_Framework_TestCase
                 null,
                 'text/plain'
             ),
+            '1.2.3.13'=> $this->response(
+                'error',
+                404,
+                array(
+                    'code'  => 'IP_ADDRESS_NOT_FOUND',
+                    'error' => 'The address "1.2.3.13" is not in our database.'
+                )
+            ),
+            '1.2.3.14'=> $this->response(
+                'error',
+                400,
+                array(
+                    'code'  => 'IP_ADDRESS_RESERVED',
+                    'error' => 'The address "1.2.3.14" is a private address.'
+                )
+            ),
+            '1.2.3.15'=> $this->response(
+                'error',
+                401,
+                array(
+                    'code'  => 'AUTHORIZATION_INVALID',
+                    'error' => 'A user ID and license key are required to use this service'
+                )
+            ),
+            '1.2.3.16'=> $this->response(
+                'error',
+                401,
+                array(
+                    'code'  => 'LICENSE_KEY_REQUIRED',
+                    'error' => 'A license key is required to use this service'
+                )
+            ),
+            '1.2.3.17'=> $this->response(
+                'error',
+                401,
+                array(
+                    'code'  => 'USER_ID_REQUIRED',
+                    'error' => 'A user ID is required to use this service'
+                )
+            ),
+            '1.2.3.18'=> $this->response(
+                'error',
+                402,
+                array(
+                    'code'  => 'OUT_OF_QUERIES',
+                    'error' => 'The license key you have provided is out of queries.'
+                )
+            ),
         );
         return $responses[$ip];
     }
@@ -207,7 +255,7 @@ class ClientTest extends \PHPUnit_Framework_TestCase
 
 
     /**
-     * @expectedException GeoIp2\Exception\WebServiceException
+     * @expectedException GeoIp2\Exception\InvalidRequestException
      * @expectedExceptionCode 400
      * @expectedExceptionMessage The value "1.2.3" is not a valid ip address
      */
@@ -216,7 +264,6 @@ class ClientTest extends \PHPUnit_Framework_TestCase
         $client = $this->client($this->getResponse('1.2.3.6'));
 
         $client->country('1.2.3.6');
-
     }
 
     /**
@@ -293,6 +340,71 @@ class ClientTest extends \PHPUnit_Framework_TestCase
         $client->country('1.2.3.12');
     }
 
+    /**
+     * @expectedException GeoIp2\Exception\AddressNotFoundException
+     * @expectedExceptionMessage The address "1.2.3.13" is not in our database.
+     */
+    public function testAddressNotFoundException()
+    {
+        $client = $this->client($this->getResponse('1.2.3.13'));
+
+        $client->country('1.2.3.13');
+    }
+
+    /**
+     * @expectedException GeoIp2\Exception\AddressNotFoundException
+     * @expectedExceptionMessage The address "1.2.3.14" is a private address.
+     */
+    public function testAddressReservedException()
+    {
+        $client = $this->client($this->getResponse('1.2.3.14'));
+
+        $client->country('1.2.3.14');
+    }
+
+    /**
+     * @expectedException GeoIp2\Exception\AuthenticationException
+     * @expectedExceptionMessage A user ID and license key are required to use this service
+     */
+    public function testAuthorizationException()
+    {
+        $client = $this->client($this->getResponse('1.2.3.15'));
+
+        $client->country('1.2.3.15');
+    }
+
+    /**
+     * @expectedException GeoIp2\Exception\AuthenticationException
+     * @expectedExceptionMessage A license key is required to use this service
+     */
+    public function testMissingLicenseKeyException()
+    {
+        $client = $this->client($this->getResponse('1.2.3.16'));
+
+        $client->country('1.2.3.16');
+    }
+
+    /**
+     * @expectedException GeoIp2\Exception\AuthenticationException
+     * @expectedExceptionMessage A user ID is required to use this service
+     */
+    public function testMissingUserIdException()
+    {
+        $client = $this->client($this->getResponse('1.2.3.17'));
+
+        $client->country('1.2.3.17');
+    }
+
+    /**
+     * @expectedException GeoIp2\Exception\OutOfQueriesException
+     * @expectedExceptionMessage The license key you have provided is out of queries.
+     */
+    public function testOutOfQueriesException()
+    {
+        $client = $this->client($this->getResponse('1.2.3.18'));
+
+        $client->country('1.2.3.18');
+    }
     public function testParams()
     {
         $plugin = new MockPlugin();