diff --git a/src/Twilio/Rest/Client.php b/src/Twilio/Rest/Client.php
index 7903778c0..d9bfcd586 100644
--- a/src/Twilio/Rest/Client.php
+++ b/src/Twilio/Rest/Client.php
@@ -27,7 +27,6 @@
  * @property Events $events
  * @property FlexApi $flexApi
  * @property FrontlineApi $frontlineApi
- * @property PreviewIam $previewIam
  * @property Insights $insights
  * @property Intelligence $intelligence
  * @property IpMessaging $ipMessaging
@@ -107,7 +106,6 @@ class Client extends BaseClient {
     protected $_events;
     protected $_flexApi;
     protected $_frontlineApi;
-    protected $_previewIam;
     protected $_insights;
     protected $_intelligence;
     protected $_ipMessaging;
@@ -234,17 +232,6 @@ protected function getFrontlineApi(): FrontlineApi {
         }
         return $this->_frontlineApi;
     }
-    /**
-     * Access the PreviewIam Twilio Domain
-     *
-     * @return PreviewIam PreviewIam Twilio Domain
-     */
-    protected function getPreviewIam(): PreviewIam {
-        if (!$this->_previewIam) {
-            $this->_previewIam = new PreviewIam($this);
-        }
-        return $this->_previewIam;
-    }
     /**
      * Access the Insights Twilio Domain
      *
diff --git a/src/Twilio/Rest/PreviewIam.php b/src/Twilio/Rest/PreviewIam.php
deleted file mode 100644
index 7f9d78262..000000000
--- a/src/Twilio/Rest/PreviewIam.php
+++ /dev/null
@@ -1,5 +0,0 @@
-<?php
-namespace Twilio\Rest;
-
-class PreviewIam extends PreviewIamBase {
-}
diff --git a/src/Twilio/Rest/PreviewIamBase.php b/src/Twilio/Rest/PreviewIamBase.php
deleted file mode 100644
index 0675e3d05..000000000
--- a/src/Twilio/Rest/PreviewIamBase.php
+++ /dev/null
@@ -1,75 +0,0 @@
-<?php
-/*
- * This code was generated by
- * ___ _ _ _ _ _    _ ____    ____ ____ _    ____ ____ _  _ ____ ____ ____ ___ __   __
- *  |  | | | | |    | |  | __ |  | |__| | __ | __ |___ |\ | |___ |__/ |__|  | |  | |__/
- *  |  |_|_| | |___ | |__|    |__| |  | |    |__] |___ | \| |___ |  \ |  |  | |__| |  \
- *
- * NOTE: This class is auto generated by OpenAPI Generator.
- * https://openapi-generator.tech
- * Do not edit the class manually.
- */
-
-namespace Twilio\Rest;
-
-use Twilio\Domain;
-use Twilio\Exceptions\TwilioException;
-
-/**
- */
-class PreviewIamBase extends Domain {
-
-    /**
-     * Construct the PreviewIam Domain
-     *
-     * @param Client $client Client to communicate with Twilio
-     */
-    public function __construct(Client $client) {
-        parent::__construct($client);
-
-        $this->baseUrl = 'https://preview-iam.twilio.com';
-    }
-
-
-    /**
-     * Magic getter to lazy load version
-     *
-     * @param string $name Version to return
-     * @return \Twilio\Version The requested version
-     * @throws TwilioException For unknown versions
-     */
-    public function __get(string $name) {
-        $method = 'get' . \ucfirst($name);
-        if (\method_exists($this, $method)) {
-            return $this->$method();
-        }
-
-        throw new TwilioException('Unknown version ' . $name);
-    }
-
-    /**
-     * Magic caller to get resource contexts
-     *
-     * @param string $name Resource to return
-     * @param array $arguments Context parameters
-     * @return \Twilio\InstanceContext The requested resource context
-     * @throws TwilioException For unknown resource
-     */
-    public function __call(string $name, array $arguments) {
-        $method = 'context' . \ucfirst($name);
-        if (\method_exists($this, $method)) {
-            return \call_user_func_array([$this, $method], $arguments);
-        }
-
-        throw new TwilioException('Unknown context ' . $name);
-    }
-
-    /**
-     * Provide a friendly representation
-     *
-     * @return string Machine friendly representation
-     */
-    public function __toString(): string {
-        return '[Twilio.PreviewIam]';
-    }
-}