You can change your Xfinity username through your online account or by calling customer service

Your Xfinity username is what you use to log into your account at xfinity.com or through the Xfinity mobile app. Xfinity lets you change it yourself in a few minutes, or you can have a representative do it over the phone. The online method is faster — you do not have to wait on hold — but both routes work equally well.

Before you start, have your account number ready. You will find it on your Xfinity bill, or you can look it up by logging in with your current username. If you have forgotten your password, you will need to reset that first before you can change your username.

Key Takeaways

  • The fastest way to change your username is to log into your account at xfinity.com, go to Account Settings, and select the option to change your username.
  • Your new username must be between 6 and 32 characters, can include letters and numbers, and cannot contain spaces or special characters like @, #, or &.
  • Xfinity will not let you use a username that is already taken or one that looks too similar to an existing username.
  • After you change your username, you will need to use the new one the next time you log in — your old username will stop working when ready.
  • If you cannot access your account or prefer to change it over the phone, call Xfinity customer service at 1-800-934-6489.

Change your username online through your account settings

Log into your Xfinity account at xfinity.com using your current username and password. Once you are logged in, look for the account menu — this is usually in the top right corner of the page or accessible through a hamburger menu on mobile. Select "Account Settings" or "My Account".

Find the section labeled "Username" or "Login Information". Click the option to change or edit your username. Xfinity will ask you to enter your new username and confirm it. Type carefully — you cannot have spaces, and special characters like @, #, $, %, &, or * are not allowed. Your username must be at least 6 characters long and no more than 32 characters.

After you enter your new username, Xfinity will check whether it is available. If the name is already taken or too similar to another account, you will see an error message and will need to try a different one. Once you find one that works, click "Save" or "Confirm". The change takes effect right away.

What happens after you change your username

Your old username stops working when ready. The next time you log into xfinity.com or the Xfinity app, use your new username instead. If you have the Xfinity app on your phone or tablet, you may need to log out and log back in with your new username.

If you have set up automatic bill pay or linked your Xfinity account to another service (like a smart home app or streaming device), those connections will stay active. You do not need to update them separately. However, if you have written your username down anywhere — a password manager, a note, or a family member's device — update those records so you do not accidentally try to log in with the old name.

Username rules and what you cannot use

Xfinity has specific rules about what makes a valid username. It must be 6 to 32 characters long, can include uppercase and lowercase letters plus numbers, but cannot start with a number. Spaces and special characters are not allowed — this includes hyphens, underscores, periods, and the @ symbol.

You also cannot use a username that is already taken by another Xfinity customer, or one that Xfinity considers too similar to an existing username. If you try a name and get a message that it is unavailable, try adding a number to the end or changing a letter. For example, if "jsmith" is taken, try "jsmith22" or "jsmith2024".

Change your username by phone if you cannot log in

If you have forgotten your password and cannot reset it, or if you are locked out of your account for another reason, call Xfinity customer service at 1-800-934-6489. A representative can change your username for you after they verify your identity. Have your account number and the last four digits of the phone number on your account ready.

The representative will ask you what new username you want and will check whether it is available. If it is, they will make the change and confirm your new username before you hang up. This usually takes about 5 to 10 minutes, though wait times vary depending on how busy the line is.

Troubleshooting if your change does not go through

If you see an error message when you try to save your new username, the most common reason is that the name is already taken or contains a character that is not allowed. Check that you have not used spaces, hyphens, underscores, periods, or special symbols. If your username starts with a number, try removing that number and putting it at the end instead.

If you get an error that says something like "This username is unavailable" or "Too similar to an existing username", try a completely different name. Adding numbers or changing several letters usually works. If the system keeps rejecting your attempts and you are sure the name follows the rules, call customer service — a representative can sometimes override restrictions or suggest alternatives.

Frequently Asked Questions

Can I change my username more than once?

Yes, you can change your username as many times as you want. There is no limit on how often you can do it. However, you must wait a few minutes between changes — if you try to change it again when ready after the first change, the system may not let you.

Will changing my username affect my bill or service?

No. Your username is only for logging into your account online or in the app. Changing it does not affect your internet, TV, or phone service, your billing address, your payment method, or anything else about your account.

What if I forget my new username after I change it?

You can reset your password and recover your username at xfinity.com by clicking "Forgot username?" on the login page. Xfinity will send a recovery link to the email address on your account. If you do not have access to that email, call customer service at 1-800-934-6489 and they can help you.

Is my username the same as my email address?

No. Your username and your email address are separate. You use your username to log in, and Xfinity uses your email address to send you account notifications and password reset links. You can change your username without changing your email, and vice versa.

Can I use my email address as my username?

Xfinity does not allow email addresses as usernames. Your username cannot contain the @ symbol, so you cannot use an email format. Stick to letters and numbers only, with no spaces or special characters.