Your Xfinity username is part of your Xfinity ID, which you can use to sign in. It's also your @comcast.net email handle.

Find Your Xfinity ID

Forgot your Xfinity ID? Your Xfinity ID is your email, mobile phone number or username. If you don’t know what your Xfinity ID is, you can use xfinity.com, Xfinity My Account app or your Xfinity X1 TV Box to find it.

You can also check out the Xfinity ID Lookup Tool or Reset Your Xfinity Password.

Change Your Xfinity Username

You can change your Xfinity username at any time on the xfinity.com website. However, your old Xfinity username can’t be used again.

If you don’t need instructions, go right to Account and Identity on xfinity.com.

Sign in to xfinity.com.
Click the Account icon and then click Account and Identity.
Under Your Information, click Xfinity ID and Security.
In the Your Information section, click Comcast email.
Click Change email and username.
Confirm the password and enter the new Xfinity username in the New username box, then click Save.
A confirmation message will appear.

My Account App

To find your Xfinity ID in the My Account app:

Sign in to the Xfinity My Account app on your mobile phone.
In Account Information, your username can be found underneath your name.

Notes:

Xfinity IDs can only be changed from the xfinity.com website.
If you want more details on your Xfinity ID and instructions on how to set it up, check out Learn about Xfinity ID and Create an Xfinity ID.

Additional Information

Visit our Online Support Center to find common solutions and self-help options, troubleshoot or manage your account and more.

The easiest way to manage and troubleshoot your Xfinity experience is with the Xfinity app! Download it for free from Google Play or the App Store, or text "APP" to 266278.

Have a quick question? Ask Xfinity Assistant.

Need additional support from us? Chat with an agent.