You can read like this

read_company_directory(-1).Wait();



static private async Task read_company_directory(int pageNumber)

{

  pageNumber++;

  var listDirEntriesParams = new ListDirectoryEntriesParameters();

  listDirEntriesParams.perPage = 300;

  if (pageNumber > 0)

      listDirEntriesParams.page = pageNumber.ToString();

  var response = await rcsdk.Restapi().Account().Directory().Entries().List(listDirEntriesParams);

  Console.WriteLine("Directory");

  Console.WriteLine(JsonConvert.SerializeObject(response.paging));

  if (response.paging.totalPages >= pageNumber)

  {

      read_company_directory(pageNumber).Wait();

  }

}

Thanks, works perfectly.

One small error. It should be if (response.paging.totalPages >= pageNumber)

Otherwise entries from last page will not be read.