I don't think so, based on this post, but you should just call them to find out for sure.
Quote:
I wish to self-host a website for my gaming server. I do not wish to use a hosting service. I talked to several different help areas and they all redirected me to one another. So I'll explain my case here. I checked the Terms of Use (Acceptable Use... Whatever) and it said:
use or run DEDICATED, STAND-ALONE EQUIPMENT OR SERVERS from the Premises that provide network
content or any other services to anyone outside of your Premises local area network (“Premises
LAN”), also commonly referred to as PUBLIC SERVICES OR SERVERS. Examples of prohibited
equipment and servers include, but are not limited to, email, Web hosting, file sharing, and proxy
services and servers;
http://forums.comcast.com/t5/Home-Networking-Router-WiF...