Your Xfinity username is part of your Xfinity ID, which you can use to sign in. It may also be your @comcast.net email address.

Change your Xfinity username

You can change your Xfinity username at any time on the Xfinity website; however, it must be different than your old one.

Note: You can’t change your Comcast email address.

Sign in to xfinity.com.
Click the Account icon on the top right-hand corner and click Account and Identity.
Under Your Information, click Xfinity ID and Security.
Click Personal email within the Your Information section.
Click Change email.
You'll be asked to verify your identity. You can choose one of two ways:
- Tap a notification in the Xfinity app
- Enter a verification code fom your email or text message
Confirm you are the one trying to make this change by tapping the notification in the Xfinity app or entering the code.
Enter the new email address in the Email Address box, then choose Continue.
You'll receive a code at the email address you entered. Enter the code on the screen. Choose Verify.
You'll recieve confirmation the email you entered is verified.

Find your Xfinity ID using the Xfinity App

To find your Xfinity ID in the Xfinity app:

Sign in to the Xfinity app on your mobile phone.
Tap the Account tab at the bottom right of the app.
Tap Account settings.
Tap Xfinity ID and security.
Your Xfinity ID is under the Personal Information section.
- Note: You can use your mobile number, personal email or Xfinity email as your Xfinity ID.

Find your Xfinity ID with the Xfinity Voice Remote

Say “Xfinity ID” or “Username” into your Xfinity Voice Remote to find the primary user's Xfinity ID on your X1 TV box. Secondary users can find their Xfinity ID on xfinity.com or the Xfinity app.

Additional information

Visit our Online Support Center to find common solutions.

The easiest way to activate, manage, and troubleshoot your Xfinity experience is with the Xfinity app! Get 24/7 real-time support, pay your bill, view plan details, get outage updates, and more. Download the free Xfinity app, or scan the QR code with your smartphone.

Need additional support? Ask Xfinity Assistant.