I would like to move my subscribers from my wordpress.com blog to a self-hosted blog. I’ve moved everything else, but after reading forums, it looks like only a WP staff member can transfer subscribers. I believe I had 67 subscribers.
What’s required is both the .wordpress.com URL and the domain URL and you must install and activate JetPack plugin on your WordPress.org install. After you have done that Staff will transfer your email subscribers only. Followers using the WordPress.com Reader cannot be transferred.