I just want to know if I can get Gig speed at my address.
...and if so, can I purchase my own modem rather than rent?
Hi, DavePlus - You can put your address at https://www.xfinity.com/gig and it will tell you if Gigabit or Gigabit Pro services are available in your area. You can also send me a private message with your full name, address, and a phone number and I can check from our side as well.
Yes, you can purchase your own DOCSIS 3.1 modem for Gigabit service (not for Gigabit Pro). You can find a list of approved modems/gateways for the Gigabit service from XFINITY here: https://mydeviceinfo.xfinity.com/