according to the comcast.net forums you will receive an email if your area is due for an upgrade. caution though...you need to stay on top of it. when the new "upgraded 6mb tier became available I had to call them several times to get them to "open up" my modem for the higher speed. Keep running speed tests and call them on the phone vs the chat thing. i made a tech stay on the line with me for 30 minutes until I received the new upgrade (I also got a refund for 4 days of service )