Where to find your Xfinity username and password

Your Xfinity username and password are stored in your account, and Comcast gives you three ways to retrieve them without calling customer service. The fastest route is the Xfinity website itself — you can reset your password in about two minutes if you remember your username, or retrieve both if you have access to the email address on file. If you do not have that email, your account number (printed on your bill) works just as well. The phone app and the Xfinity website use the same account system, so whichever method you choose will work for both.

You will need one piece of information to start: either your Xfinity username, your account number, or the email address tied to your account. Your account number appears on your Xfinity bill in the upper right corner, usually formatted as a long string of numbers. If you have none of these, you will need to call Xfinity customer service at 1-800-934-6489 and verify your identity by providing your service address and the last four digits of the Social Security number on the account.

Key Takeaways

  • You can reset your password on the Xfinity website without calling, using either your username, account number, or email address.
  • The password reset page is at xfinity.com/signin and takes about two minutes if you have one piece of account information.
  • If you have forgotten your username as well, use your account number or email address to retrieve it during the reset process.
  • The same username and password work for the Xfinity website, the Xfinity Stream app, and the Xfinity Mobile app.
  • If you cannot access your email or do not know your account number, call 1-800-934-6489 and have your service address and last four Social Security digits ready.

Reset your password using the Xfinity website

Go to xfinity.com/signin in any web browser. Below the password field, click the link that says "Forgot username or password?" This takes you to a page where Comcast asks you to enter either your username, your account number, or the email address on file.

If you enter your username, Xfinity will send a password reset link to the email address associated with your account. Check your inbox (and your spam folder) for an email from Xfinity with the subject line "Reset your Xfinity password." Click the link in that email, create a new password, and you are finished. If you enter your account number or email address instead, Xfinity will show you your username on the next screen, then send the password reset email to your registered email address.

Your new password must be at least 8 characters long and include at least one uppercase letter, one lowercase letter, one number, and one special character (such as ! @ # $ % or &). Write down your new password somewhere safe, or use a password manager to store it.

Retrieve your username if you only know your account number

If you have your account number but cannot remember your username, the password reset page will show it to you. Go to xfinity.com/signin, click "Forgot username or password?", and enter your account number in the field labeled "Account Number or Service Address." On the next screen, Xfinity displays your username in full.

Once you see your username, you can use it to reset your password, or you can proceed with the account number method to reset your password directly. Either path takes you to the same password reset email.

Use the Xfinity mobile app to reset your password

If you have the Xfinity app already installed on your phone, you can reset your password from within the app without opening a web browser. Open the app, tap "Sign In," and then tap "Forgot username or password?" at the bottom of the screen. Enter your username, account number, or email address, and follow the same steps as the website method.

The app will either send a reset link to your email or display your username on screen, depending on what information you entered. This method works on both iPhone (iOS) and Android devices.

What to do if you cannot access your registered email address

If the email address on your Xfinity account is no longer active or you do not have access to it, you cannot use the self-service password reset. Instead, call Xfinity customer service at 1-800-934-6489. Have your service address and the last four digits of the Social Security number on the account ready. A representative will verify your identity and either reset your password over the phone or send a reset link to a different email address you provide.

If you want to change the email address on file before resetting your password, you will still need to call, because the website requires your current password to update account settings.

Retrieve your account number from your Xfinity bill

Your account number appears on every Xfinity bill you receive. Open your most recent paper bill or log into your email to find a digital copy. The account number is printed in the upper right corner of the first page, usually as a string of 10 to 12 digits. It may also appear on your bill under "Account Number" or "Service Account Number."

If you do not have access to a bill, you can call Xfinity at 1-800-934-6489 and provide your service address to have a representative read your account number to you over the phone.

Use your username and password across Xfinity services

The same username and password work for the Xfinity website, the Xfinity Stream app (for TV and video), the Xfinity Mobile app, and the Xfinity Home app. If you change your password on one platform, the change takes effect on all of them. You do not need separate logins for each service.

If you are having trouble signing into a specific app after resetting your password, try signing out completely, closing the app, and signing back in. Sometimes the app needs to refresh its connection to your account after a password change.

Frequently Asked Questions

Can I change my username, or do I have to keep the one Comcast assigned?

You can change your username on the Xfinity website. Log in with your current username and password, go to Account Settings, select "Username," and enter a new one. Your new username must be between 6 and 32 characters and can include letters, numbers, hyphens, and underscores. The change takes effect when ready across all Xfinity apps and services.

What if I keep getting an error message when I try to reset my password?

The most common cause is entering information that does not match your account exactly — for example, a username with a space or special character you forgot about, or an account number with a typo. Try the reset again using your email address instead, since that is less likely to have formatting errors. If you still get an error, call 1-800-934-6489 and have a representative reset it for you.

How long does it take to receive the password reset email from Xfinity?

The reset email usually arrives within a few minutes. Check your spam or junk folder if you do not see it in your inbox within 10 minutes. If it does not arrive at all, the email address on file may be incorrect, and you will need to call customer service to update it.

Do I need a different password for Xfinity Mobile than for my TV service?

No. Your Xfinity username and password work for all Xfinity services — TV, internet, mobile, and home security. You use the same login credentials for every app and the website.