diff --git a/lib/twilio-ruby/rest/client.rb b/lib/twilio-ruby/rest/client.rb
index ddcdefc7f..43e465507 100644
--- a/lib/twilio-ruby/rest/client.rb
+++ b/lib/twilio-ruby/rest/client.rb
@@ -62,11 +62,6 @@ def frontline_api
                 @frontline_api ||= FrontlineApi.new self
             end
             ##
-            # Access the PreviewIam Twilio Domain
-            def preview_iam
-                @preview_iam ||= PreviewIam.new self
-            end
-            ##
             # Access the Insights Twilio Domain
             def insights
                 @insights ||= Insights.new self
diff --git a/lib/twilio-ruby/rest/preview_iam.rb b/lib/twilio-ruby/rest/preview_iam.rb
deleted file mode 100644
index 64e4e6f31..000000000
--- a/lib/twilio-ruby/rest/preview_iam.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-module Twilio
-    module REST
-      class PreviewIam < PreviewIamBase;
-      end
-    end
-end
diff --git a/lib/twilio-ruby/rest/preview_iam_base.rb b/lib/twilio-ruby/rest/preview_iam_base.rb
deleted file mode 100644
index 84e4a4887..000000000
--- a/lib/twilio-ruby/rest/preview_iam_base.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-##
- # This code was generated by
- # ___ _ _ _ _ _    _ ____    ____ ____ _    ____ ____ _  _ ____ ____ ____ ___ __   __
- #  |  | | | | |    | |  | __ |  | |__| | __ | __ |___ |\ | |___ |__/ |__|  | |  | |__/
- #  |  |_|_| | |___ | |__|    |__| |  | |    |__] |___ | \| |___ |  \ |  |  | |__| |  \
- #
- # NOTE: This class is auto generated by OpenAPI Generator.
- # https://openapi-generator.tech
- # Do not edit the class manually.
-# frozen_string_literal: true
-module Twilio
-  module REST
-    class PreviewIamBase < Domain
-      ##
-      # Initialize previewIam domain
-      #
-      # @param twilio - The twilio client
-      #
-      def initialize(twilio)
-        super(twilio)
-        @base_url =  "https://preview-iam.twilio.com"
-        @host = "preview-iam.twilio.com"
-        @port = 443
-      end
-
-      ##
-      # Provide a user friendly representation
-      def to_s
-        '<Twilio::REST::PreviewIam>';
-      end
-    end
-  end
-end